If we quadruple the energy in a vessel of gas, what happens to the velocity of the gas particles?A) The velocity quadruples.B) The velocity doubles.C) The velocity halves.D) The velocity stays the same

Answers

Answer 1

As stated in the preceding statement The velocity doubles if we triple the fuel in a gas vessel.

Which four types of gases are there?

By evaluating the four major gases you're searching for—oxygen (O2), methane gas (CO), sulfur compounds (H2S), and methane (CH4)—a 4 gas sensor can help you protect your employees in any setting.

What is the temperature of gas?

The average rotational kinetic energy of both the molecules in a gas is measured by its temperature. The molecule in some kind of a hot gas move more quickly than those in a cold gas; while the mass of the gas doesn't change, the kinetic energy does, which raises the temperature.

To know more about gas visit;

https://brainly.com/question/14427845

#SPJ4


Related Questions

If we triple the number of moles in the gas vessel at constant pressure, what would the new volume be?Group of answer choicesa. 40 Lb. 20 Lc. 10 Ld. 30 L

Answers

We may infer that the new number of moles was tripled, therefore our assumption is sound. 30 L is the same as the new volume.

To determine the factor, the final volume will be divided by the initial volume. As a result, when the amount of gas triples in moles, the volume also triples. The volume will quadruple when the amount of gas is increased by three times. According to Boyle's law, a gas's volume and pressure are inversely related. We therefore anticipate a 13-fold drop in volume at constant temperature if the pressure increases by a factor of 3 (tripled).

Learn more about moles from here:

https://brainly.com/question/26416088

#SPJ4

what is the predominant intermolecular force in the liquid state of each of these compounds: ammonia ( nh3 ), carbon tetrabromide ( cbr4 ), and methyl chloride ( ch3cl )?

Answers

Part-A

In the liquid form of NH[tex]_{3}[/tex], hydrogen bonding is the main force.

The main forces in the dispersion forces of CBr4

Dipole-dipole forces are the most common types of forces in CH[tex]_{3}[/tex]CL.

Part B:

The compounds' boiling points are listed in decreasing order.

NaF > CH[tex]_{2}[/tex]O > C[tex]_{2}[/tex]H[tex]_{2}[/tex] gas (less boiling point)

These are ionic chemicals :. (more boiling point)

A chemical compound is any material that consists of identical molecules having atoms from two or more different chemical elements.

Atoms from more than 100 different chemical elements, both in their pure forms and when mixed to form chemical compounds, make up all matter in the universe.

Only the atoms that are unique to that element are present in a pure element sample, and each element has its own unique atoms. For instance, the atoms that make up carbon differ from those that make up iron, which differ from those that make up gold. Every element has a distinctive symbol that is made up of one, two, or three letters that either come from the element's present name or from its original (typically Latin) name.

Learn more about Carbon here:

https://brainly.com/question/13719781

#SPJ4

Q) Part A:

What is the predominant intermolecular force in the liquid state of each of these compounds: ammonia (NH3 ), carbon tetrabromide (CBr4 ), and methyl chloride (CH3Cl )?? [options: dipole-dipole forces, hydrogen bonding, or dispersion forces]

Part B:

Rank the following compounds in order of decreasing boiling point: sodium fluoride (NaF ), acetylene (C2H2 ), and formaldehyde (CH2O )

An organic compound contains 75% carbon and 25% hydrogen. The empirical formula of the compound would be:
A. CH4
B. CH
C. C2H3
D. CH2

Answers

The given sentence indicates that the compound's empirical formula is CH2.

What is the name of a ch2 group?

Any portion of a molecule and consists of 2 hydrogen atoms bonded to a carbon, which is related to the rest of the protein by two bonds, is known as a methylene group in organic chemistry. The group can be written as CH 2, with the two bonds denoted by the ".

ch2 and h2c can we write?

why we occasionally write ch2 and occasionally h2c. CH2 and H2C are identical to one another. Although they both relate to the same entity, CH is sometimes written as H in molecular structures.

To know more about CH2 visit:

https://brainly.com/question/27996213

#SPJ4

6. vinegar is a solution of acetic acid, ch3cooh (60.05 g/mol), dissolved in water. it can be neutralized by ca(oh)2. if it took 30.10 ml of 0.100 m ca(oh)2 solution to react with all of the acetic acid in 11.1 g of vinegar, what is the mass percent of acetic acid in the vinegar

Answers

The vinegar is a solution of the acetic acid with the molar mass of 60.05 g/mol . The mass percent of the acetic acid in the vinegar is 3.33 %.

The chemical equation is :

2CH₃COOH  +  Ca(OH)₂   ---->   Ca(CH₃COO)₂   +   2H₂O

The molarity of  Ca(OH)₂   = 0.100 M

The volume of  Ca(OH)₂   = 0.03110 L

The number of moles = molarity × volume

                                    = 0.100 × 0.03110

                                    = 0.00311 mol

The moles of acetic acid = 2 × 0.00311

                                          = 0.0062 mol

The mass of the acetic acid = moles × molar mass

                                              = 0.0062 × 60.05

                                             = 0.37 g

The mass of the vinegar = 11.1 g

The mass percent of acetic acid = (0.37 / 11.1 ) × 100 %

                                                      = 3.33 %

To learn more about mass percent here

https://brainly.com/question/13981789

#SPJ4

how much water should be added to 1 gallon of pure antifreeze to obtain a solution that is 95% antifreeze

Answers

Answer:

0.0526 gallons

Explanation:

Here is another way to set up the solution.  (It will give the same answer as Michael's solution.) w = number of gallons of pure waterYou have 1 gallon of pure antifreezeYou want 95% antifreeze in 1+w gallons You can do a weighted combination of concentrations of antifreeze. (0%)(w) + (100%)(1) = (95%)(1 + w) 100 = 95(1 + w) w = 100/95 - 1 ≅ 0.0526 gallons

a 3.8 g sample of sodium hydrogen carbonate is added to a solution of acetic acid weighing 10.5 g. the two substances react, releasing carbon dioxide gas to the atmosphere. after the reaction, the contents of the reaction vessel weigh 12.0 g. what is the mass of carbon dioxide released during the reaction?

Answers

Given: mass of sodium hydrogen carbonate = 3.8 g

mass of acetic acid = 10.5 g

Mass of reactants = mass  of sodium hydrogen carbonate & mass of acetic acid = 3.8 + 10.5 = 14.3 g

Mass of reactants = Mass of products in reaction vessel + mass of carbon dioxide (as it escapes)

Mass of carbon dioxide = 14.3 - 12.0 =2.3 g

Thus the mass of carbon dioxide released during the reaction is 2.3

Mass cannot be created or destroyed, under the law of conservation of mass. As a result, the mass of reactants and products must be equal. Each element must have an equal number of atoms on both the reactant and product sides of the reaction. Chemical equations are balanced as a result.

Learn more about Reactants here:

https://brainly.com/question/12250842

#SPJ4

which of the following is an accurate description of ionic bonding? group of answer choices atoms of two different elements share electrons and protons; the resulting compound is bonded together by the strong, binding energy of shared protons. atoms of different elements, having gained or lost electrons, form negative and positive ions that are bonded together by attractive forces between ions with opposite charges. nuclei of bonding atoms exchange electrons; the resulting ions are bonded together by the attractive forces between the negative and positive nucleons. nuclei of two different atoms share electrons, and the resulting compound is tightly bonded by the very strong, induced, electronuclear bonds.

Answers

An accurate description of ionic bonding is atoms of different elements, having gained or lost electrons, form negative and positive ions that are bonded together by attractive forces between ions with opposite charges (B)

The answer choices should have as follow :

A. atoms of two different elements share electrons and protons; the resulting compound is bonded together by the strong, binding energy of shared protons.

B. atoms of different elements, having gained or lost electrons, form negative and positive ions that are bonded together by attractive forces between ions with opposite charges.

C. nuclei of bonding atoms exchange electrons; the resulting ions are bonded together by the attractive forces between the negative and positive nucleons. 

D. nuclei of two different atoms share electrons, and the resulting compound is tightly bonded by the very strong, induced, electronuclear bonds.

Ionic bonding 

The ionic bonding is formed from electrostatic attraction between the two ions which oppositely charged. In specific, there is a transfer of some electrons (outermost) from one atom to another. If the atom loses the electrons, it results in a positively charged ion or cation. Meanwhile, if the atom gaining one or more electron, it becomes an anion or a negatively charged ions.

Sodium chloride (NaCl) is an example of ionic bonding. An atom of sodium (Na) donates one of its electrons to an atom chlorine (Cl) and resulting positive ion (Na+) and negative ion (Cl-) become a stable compound. 

Thus,  the correct option is B, because only electrons that are shared. 

Learn more about ionic bonding by clicking this link :

https://brainly.com/question/11527546

#SPJ4

you titrate a 200 ml hbr solution with 0.5 m koh. if it takes 150 ml of koh to reach the equivalence point, what was the concentration of the original acid solution?

Answers

the HBr solution has a concentration of 0.375 M.

What is the purpose of KOH solution?

Lye, commonly known as potassium hydroxide, is an inorganic substance having the composition KOH.

Is KOH a basic or an acid?

KOH is a reliable base. It often has a pH between 10 and 13.

The unidentified HBr solution has a concentration of 0.375 M.

Where M1 = Molar mass of HBr = and M2 = V1 x2 x2

V1 = Molar mass for KOH = 0.5 M2 = Volumes of Hyder = 200 ml x1 = n-factor for HBr = 1

V2 = Amount pf KOH Equals 150 ml x 2 = KOH's n-factor = 1

The numbers are now M1 200 1 = 0.5 150 1 M1 = 0.5 150 1 / 200 1 M1 =0.375 M.

Therefore, the HBr solution has a concentration of 0.375 M.

To know more about KOH solution visit:

https://brainly.com/question/29981801

#SPJ4

Calculate the percent composition of the elements in each compound. mgso4 c6h12o6

Answers

Composition within C6H12O6 compound is 40%, compared to 53.33% in MgSO4 compound.

Compound? What do you mean?

A compound is anything created when two or more separate chemical reactions are mixed together in a specific proportion. Chemical connections that are challenging to break are created when the constituents interact with one another. These bonds occur as a byproduct of atoms sharing or trading electrons.

In MgSO4,

MgSO₄ = 120 g/mole.

Mass of Mg = 24 g.

Mass of S = 32 g.

Mass of O = 16.

Mass of O₄ = 16 × 4

= 64 g.

= 24/120 × 100 %

% comp. = 20 %

= 32/120 × 100%

= 0.266 × 100%

% comp. of S = 26.66 %

comp. of O₄ = Mass of O₄/Mass of MgSO₄ × 100 %

= 64/120 × 100 %

= 0.533 × 100 %

∴ % comp. of O₄ = 53.33 %

In C6H12O6,

Molar mass of compound = 6(12.0)+12(1.01)+6(16.0)

=180g/mol

Mass due to carbon =6(12.0)

=72.06g/mol

% composition of C =72/180×100

=40%

To know more about compound visit:

https://brainly.com/question/20701639

#SPJ4

you are given an irregularly shaped lump of a material and determine that it has a mass of 16.9245 g. when placed in a graduated cylinder that initially contains exactly 20.00 ml of water, the water level rises to 29.73 ml. what is the density of the unknown material? (show all your calculations.)

Answers

The density of the unknown material is approximately 1.74 g/cc

To find the density of the unknown material, we need to first calculate its volume. We can do this by finding the volume of the water that was displaced by the lump. The volume of the displaced water is given by the difference in volume of water in the cylinder before and after adding the lump.

The volume of the displaced water is equal to the final volume of water in the cylinder minus the initial volume of water in the cylinder:

V = 29.73 ml - 20.00 ml

=> 9.73 ml

Next, we'll convert the volume from milliliters to cubic centimeters (cc) since the density of the unknown material is usually expressed in g/cc:

V = 9.73 ml x (1 cc/1 ml)

=> 9.73 cc

Finally, we can calculate the density of the unknown material by dividing its mass by its volume:

density = mass / volume

density = 16.9245 g / 9.73 cc

density = 1.74 g/cc

So the density of the unknown material is approximately 1.74 g/cc.

To learn more about Density :

https://brainly.com/question/13195609

#SPJ4

Hello can someone please help me


1) Multiply the model’s weight by 123 to see what the real house would weigh.
The model weighs _____ lbs.
The real house would weigh ____________ lbs.

2) A regular balloon can lift 0.036 lbs. How many balloons would it take to lift the model house and the real house? Divide your answers from question 1 by 0.036 to find out.
The model would need _____________ balloons.
The real house would need _________________ balloons.

3) A regular balloon holds 0.52 cubic feet of helium. How many cubic feet of helium (the volume) would we need to lift the model and the real house? Multiply your answers from question 2 by 0.52 to find out.
The model: _________ cu. ft.
The real house: ______________ cu. ft.

4) Imagine instead of lots of little balloons, we used one big one! The radius of a sphere can be found using the following formula: R=3√((.75V)/(π)). Double check you’re using cube root. What is the radii (and diameters) of the giant balloons for the model and the real house?
On a TI 83, cube root is #4 under the “Math” menu. Then type in the rest using the cu. ft. as volume.
On a phone, type the cu. ft. x .75=... ÷ 3.14 =... then turn the calculator sideways and hit “3√x”
On a windows computer, use the phone steps, but press “view scientific” to find the “3√x” button.
The radius of the balloon for the model: _________ feet.
The diameter of the balloon for the model: _________ feet.
Radius of the balloon for the real house: _________ feet.
The diameter of the balloon for the real house: _________ feet.

5) An extra large helium tank can fill 600 balloons. How many tanks would I and Carl Fredricksen from “Up!” need? Divide your answers from question 2 by 600 to find out.
I would need _______ tanks.
Carl Fredricksen from “Up!” would need __________ tanks.

6) I can rent an extra large tank for $250. How much would it cost to buy the helium to lift the model and the real house? Multiply your answers from question 5 by 250 to find out.
Helium to lift the model costs $____________.
Helium to lift the real house costs $________________.

7) Empty balloons cost money, too. A balloon bought in bulk costs $0.125. How much do the empty balloons cost to lift the model and the real house? Multiply you answers from question 2 by 0.125 to find out.
The empty balloons for model would cost $_____________
The empty balloons for the real house would cost $____________________

Answers

The evaluation of the model and the real house using unit rate indicates that we get;

The model weighs 3,333 lbs. The real house weighs 409,959 ibsThe model would need 85,462 balloons. The real house would need 11,387,750 balloonsThe model: 44440.24 cu.ft. The real house 5,921,630 cu. ft.The radius of the balloon model: 21.97 feet. Diameter of the balloon for the model: 43.85 feet. The radius of the balloon for the real house: 112.23 feet. The diameter of the balloon for the real house: 224.46 feetI would need 143 tanks. The number of tanks needed for the real house is: 18980 tanksHelium to lift the model costs: $35,750. Helium to lift the real house costs: $4,745,000The empty balloons for the model would cost $10,682.75. The empty balloon for the real house would cost. $1,423,468.75

What is a unit rate?

A unit rate is the rate at which one item of a product or service is valued.

1) The model's weight that will be used to calculate the weight of the real house is required

Whereby the model weight is 3,333 lbs, we get

Model weight = 3,333 lbs

The number of models that are equivalent to the real house = 123 model  units

Weight of the real house = 123 × 3,333 lbs = 409,959 lbs

2) The weight a regular balloon can lift = 0.036 lbs

The number of balloons that would lift the model is therefore;

3,333 lbs ÷ 0.036 lbs/balloon ≈ 85,462 balloons

The number of balloons that would lift the house is therefore;

409,959 lbs ÷ 0.036 lbs/balloon = 11,387,750 balloons

3) The volume of helium in one balloon = 0.52 cubic feet

The volume of helium that would be needed to lift the model is therefore;

85,462 balloons × 0.52 cu. ft./balloon = 44440.24 cu. ft.

The volume of helium that would be needed to lift the real house can be found as follows;

11,387,750 balloons × 0.52 cu. ft./balloon = 5921630 cu. ft.

4) The formula for the radius of the sphere is; R = ∛(0.75·V/π), where;

V = The volume of the balloon or the gas it contains

Therefore, for the model, we get;

V = 44440.24 cu. ft., therefore;

R = ∛(0.75 × 44440.24/π) ≈ 21.97 feet

The radius for the balloon for the model: 21.97 feet

The diameter = 2 × 21.97 ≈ 43.95

The diameter for the balloon for the model is about 43.95 feet

The values for the balloon for the real house are;

R = ∛(0.75 × 5921630/π) ≈ 112.23

The radius of the balloon for the real house: 112.23 feet

Diameter ≈ 2 × 112.23 = 224.46

The diameter for the balloon for the real house is about 224.46 feet

5) The number of balloons that an helium tank can fill = 600 balloons

The number of tanks of helium needed to fill the balloons that will lift the model are therefore;

85,462 balloons/(600 balloons/tank) ≈ 143 tanks

(The above value is obtained by rounding up)

The tanks needed to lift the model = 143 tanks of helium

The number of tanks needed for the real house is found as follows;

11,387,750 balloons/(600 balloons/tank) ≈ 18979.53 tanks

6) The cost of the renting the extra large tank of helium to lift the model and the real house can be found as follows;

The unit rate for the cost of renting one tank = $250

The cost of helium to lift the model is therefore;

143 tanks × $250/tank = $35,750

The cost to lift the real house can be found as follows;

18979.53 tanks ≈ 18980 tanks

Cost ≈ 18980 tanks × $250/tank = $4,745,000

The cost to lift the real house is about $4,745,000

7) The cost per balloon = $0.125

Cost of the empty balloons to lift the model is therefore;

Cost of balloons ≈ $0.125/balloon × 85,462 balloons = $10,682.75

The cost of balloons to lift the model is about $10,682.75

Cost of the empty balloons to lift the real house is therefore;

Cost ≈ $0.125/balloon × 11,387,750 balloons ≈ $1,423,468.75

Learn more about unit rates here: https://brainly.com/question/30315722

#SPJ1

which salt would lower the freezing point of a solvent the most? group of answer choices 0.20m na3po4 0.50m cacl2 0.30m na2so4 0.7m nacl

Answers

Considering the number of the particles and the molality 0.20m Na3PO4 would lower the melting point the most.

What are colligative properties?

Colligative properties are the physical properties of solutions that depend on the number of solute particles in a given amount of solvent, but not on their chemical nature. Examples of colligative properties include boiling point elevation, freezing point depression, osmotic pressure, and vapor pressure lowering.

Since 0.20m Na3PO4  has the most number of particles then it would lower the melting point the most.

Learn more about melting point:https://brainly.com/question/29578567

#SPJ1

in which one of the following pairs will the first system have a higher entropy than the second? assume p and t are the same for each pair, unless stated otherwise. group of answer choices 1 mole he(g); 1 mole kr(g) 1 mole xe(g) at 1 atmosphere; 1 mole xe(g) at 0.5 atmosphere 1 mole ch4(g); 1 mole c2h6(g) 1 mole o2(g); 2 mole o(g) 2 mole o(g); 1 mole o2(g) flag question: question 2

Answers

20 one-dollar dollars were randomly distributed among 20 people, or 20 one-dollar bills were randomly divided among 10 entropy .

Which reaction has a higher entropy?

Compared to solids or liquids, gases possess higher entropies because of their chaotic mobility.This implies that entropy will alter during a process in which the quantity of gas molecules present changes.

How can you tell if entropy is rising or falling?

Entropy increases as a substance transitions from a solid to a liquid to a gas, and by observing the phases of a reactants and products, you can determine if an entropy change was positive or negative.Entropy rises whenever the number of gas moles rises.

To know more about entropy visit:

https://brainly.com/question/13146879

#SPJ4

A pile of firewood is more stable as ash and smoke than firewood.
Why does this pile of firewood not immediately release the energy in
Its chemical bonds? (use the word activation energy in your answer)

Answers

The pile of firewood  does not immediately release the energy in its chemical bonds because activation energy is higher in case of solids where forces of attraction is maximum.

What are forces of attraction?

Forces of attraction  is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion  and an atom as well.It varies for different  states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases  as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

Learn more about forces of attraction,here:

https://brainly.com/question/23841038

#SPJ1

Who were the first people to attempt to explain chemical changes?

Answers

Democritus and Aristotle, Greek philosophers who proposed early theories on the matter's nature and the changes it experiences, are credited with making the first attempt at explaining chemical processes.

In science, what exactly is a chemical change?

A chemical change, often known as a chemical reaction, is the activity whereby an one or more materials are converted chemically into another. A drug combining with another substance may be necessary in this situation. It might also entail a substance disintegrating into other substances.

Does burning sheets cause a chemical change?

Because ash is created throughout the burning process as an unique chemical substance, scorching paper results in a chemical change. Carbon reacts with nitrogen and oxygen during combustion to produce carbon dioxide (CO2) and water. substance.

To know more about the chemical change visit: https://brainly.com/question/29760166

#SPJ4

Name example where someone would create a model as part of a scientific investigation, and explain why they would need to use this model instead of working with the actual thing.

Answers

Scientific models are used to easily understand and interpret complex processes and natural phenomenon. For example, there are models for explaining water cycles, volcanic eruptions etc.

What are scientific models ?

Scientific models are visual representations or simplified mathematical expressions used to interpret and understand complex process. There are theoretical models, dynamic models, still models as well advanced computer simulation models.

For example, the liquid drop model was used to explain the nuclear fission. Similarly, there are different atomic models to explain the structure of atoms. These are theoretical models.

There are advanced computer simulations nowadays to visualize many natural phenomenon's, like, volcanic eruptions, tectonic movements etc. Similarly still or working models of human organs etc. are examples of scientific models.

Find more on scientific models:

https://brainly.com/question/14250312

#SPJ1

What is the maximum number of bonds phosphorous can form?

Answers

Five covalent bonds are possible with phosphorus, as in PCl₅.

Two chlorides are produced by phosphorus: PCl₃ and PCl₅. Depending on the amount of chlorine present, both products are created when phosphorus burns in chlorine. The diagram of PCl₃ and PCl₅ is attached

Not a noble gas structure, as the phosphorus now possesses 5 pairs of electrons in the outer level. Phosphorus is a chemical element with the symbol P and atomic number 15.

Phosphorus is a mineral that naturally occurs in many foods and is also available as a supplement.

To look more about Phosphorus click here

brainly.com/question/4622631

#SPJ4

The Law of Conservation of Mass states that

a.
matter cannot be created or destroyed.

b.
matter is destroyed through fire.

c.
matter is converted into energy.

d.
matter cannot move at the speed of light.

Answers

Answer:

The answer is A I think sorry if I'm wrong

Jennifer performed an experiment to see how temperature affects the rate of breathing. Group A will have their rate of breathing measured in 350 F and Group B will have their rate of breathing measured in 700 F. (IM LOOKING FOR THE HYPOTHESIS STATEMENT)

Answers

Group A will have their rate of breathing measured in 350 F and Group B will have their rate of breathing measured in 700 F.Jennifer performed an experiment that if the temperature increases then the rate of breathing will also decrease.

What is the measurement for breathing rate?

Your breathing rate is another name for your respiratory rate. This is how many breaths you take per minute. You can calculate your breathing rate by counting the number of breaths you take in one minute while at rest.

This is because the increase in body temperature will increase the heart rate making it harder to breathe.

Thus, the temperature increases then the rate of breathing will also decrease.

To learn more about the breathing rate, follow the link;

https://brainly.com/question/28835350

#SPJ1

what is the ratio of conjugate base to acid for a weak acid at a ph of 5.0? the pka of the acid is 6.0.

Answers

The ratio of the conjugate base to the weak acid is 10:1 at a pH of 5.0.The pH of a solution is defined as the negative logarithm of the hydrogen ion (H+) concentration, so pH = -log[H+].

In a weak acid solution, the hydrogen ion concentration is proportional to the degree of dissociation of the weak acid, which can be expressed as follows:

HA + H2O -> H3O+ + A-

where HA is the weak acid, A- is the conjugate base, H3O+ is the hydronium ion, and the arrow indicates the direction of the equilibrium.

The degree of dissociation of a weak acid can be expressed in terms of the acid dissociation constant (Ka), which is given by:

Ka = [H3O+][A-] / [HA]

At the equivalence point of a weak acid, the pH is equal to the pKa of the acid, which is defined as the negative logarithm of the Ka value. In this case, the pKa of the acid is 6.0, so at a pH of 5.0, which is less than the pKa, the weak acid is only partially dissociated.

To calculate the ratio of the conjugate base to the weak acid, we can use the following expression:

[A-] / [HA] = [H3O+] / Ka

Since the pH = -log[H+], we can substitute [H+] for [H3O+] in the above expression.

At a pH of 5.0, [H+] = 10^-5, so:

[A-] / [HA] = 10^-5 / Ka

The value of Ka can be calculated using the pKa:

Ka = 10^(-pKa) = 10^(-6.0) = 1.0 x 10^-6

So, the ratio of conjugate base to acid at a pH of 5.0 is:

[A-] / [HA] = 10^-5 / 1.0 x 10^-6 = 10

So, the ratio of the conjugate base to the weak acid is 10:1 at a pH of 5.0.

Learn more about conjugate base here:

https://brainly.com/question/30225100

#SPJ4

which bond is a weak bond that arises usually between a hydrogen and either an oxygen or nitrogen atom?

Answers

Solution: The bond between a hydrogen and nitrogen atom is weak bond as compared to the bond between hydrogen and oxygen atom is because of more electronegative nature of oxygen.

Bond strength depends upon the atomic size, electronegativity and bond length. The size of Oxygen atom is larger as compared to Nitrogen because of the stable electronic configuration of nitrogen. The electronegativity of oxygen is higher as compared to Nitrogen due to which the bond between Hydrogen and Oxygen is more polar than bond between Hydrogen and Nitrogen. Higher the bond polarity stronger the bond. This is the reason why the bond between Hydrogen and Nitrogen is weak bond as compared to the bond between Hydrogen and Oxygen.

learn more about weak bond and strong bond here

https://brainly.com/question/14104361

#SPJ4

How many moles of carbon dioxide would be contained in 6.0 L at 132.0 kPa and 47°C?

Answers

2 moles  of carbon dioxide would be contained in 6.0 L at 132.0 kPa and 47°C. This law is a generalization that includes both Boyle's and Charles' laws.

What is ideal gas?

The ideal gas, sometimes known as the perfect gas, is a gas that, in physical behavior, corresponds to a certain idealized connection between pressure, volume, speed temperature known as the perfect, or general, gas law.

This law is a generalization that includes both Boyle's and Charles' laws as special instances, and it asserts that for a given quantity of gas, the product of volume V and pressure P is proportional to absolute temperature T; that is, PV = kT, where k is a constant. This type of relationship for a material is known as its equation of state, and it is adequate to define its gross behavior.

P×V= n×R×T

substituting all the given values in the above equation, we get

132.0×6.0 = n×8.314×47

n = 2 moles

Therefore,  2 moles of carbon dioxide would be contained in 6.0 L at 132.0 kPa and 47°C.

To learn more about ideal gas, here:

https://brainly.com/question/12677792

#SPJ1

a solution of cacl2 in water forms a mixture that is 37.0% calcium chloride by mass. if the total mass of the mixture is 449.8 g, what masses of cacl2 and water were used?

Answers

The mass of calcium chloride and water used are 166.426 g and 283.374 g respectively.

A solution containing two or more different components is termed as a solution mixture.

The percentage of calcium chloride in the mixture is 37.0% by mass.

This means that in each 100g of the mixture,  the mass of calcium chloride = 37.0 g

if the total mass of the mixture = 449.8g

the mass of calcium chloride and water used is calculated as:

mass of calcium chloride

= 37/100 × 449.8g

=166.426 g

And, the mass of water

=( 449.8- 166.426)g

= 283.374 g

To know more about solution mixture here

https://brainly.com/question/12999867

#SPJ4

You mix 2 moles of HBr with 3 moles of KOH in enough water to make 1 L of solution. How much KBr do you expect to make?a. 2 molesb. 5 molesc. 3 molesd. 1 moles

Answers

c. 3 moles. The three moles of KBr we can expect when You mix 2 moles of HBr with 3 moles of KOH in enough water to make 1 L of solution.

How can you tell whether a solution is simple?

The pH of a solution will range from 0 to 14. Solutions having a pH of 7 are referred to as neutral. If the pH is lower than 7, the solution is acidic. When the pH level is higher than 7, the solution is basic.

What is the pH of the buffer solution?

When a weak base and its salt are combined with a strong acid, basic buffer—which has a basic pH—is created. The pH of an equal mixture of ammonium hydroxide and ammonium chloride in water is 9.25. They contain the weak base and the weak base salt.

Does lactate serve as a buffer for pH?

During prolonged, high-intensity exercise, lactate acts as a temporary "neutralizer" or "buffer" to the cell's increased proton accumulation. Since increased lactate synthesis and acidity go hand in hand, lactate testing is a great "indirect" indicator of the cell's metabolic state.

To know more about moles visit;

https://brainly.com/question/30373566

#SPJ4

Which toxic substance is often used to extract gold and results in harmful environmental effects?
a. acid mine drainage
b. carbon dioxide
c. sulfur dioxide
d. cyanide
e. fluoride

Answers

Cyanide is the poisonous substance used to extract gold (d).

What is cyanide?

The extraction of metals and electroplating are two industrial procedures that commonly involve the highly poisonous chemical compound cyanide. Sodium cyanide, potassium cyanide, hydrogen cyanide gas, potassium ferrocyanide, and ferricyanide salts are some of the different forms it can take.

Cyanide is a poisonous compound that is frequently used to extract gold and has a negative impact on the environment. In order to remove gold particles from ore, the very poisonous chemical cyanide is employed in the gold mining process. Despite its effectiveness, cyanide leaking can have negative impacts on the ecosystem and neighboring plants and animals. Animal and fish deaths as well as contaminated water sources have been connected to cyanide releases from mining operations.

In addition, chronic exposure to low concentrations of cyanide can harm human health and result in headaches, vertigo, and nausea. Despite the fact that many nations have laws governing the use of cyanide in gold mining, its widespread usage and a lack of effective management and containment techniques continue to raise concerns.

To know more about cyanide, visit:

https://brainly.com/question/13030946

#SPJ4

what mass (in g) of potassium chlorate is required to supply the proper amount of oxygen needed to burn 131.8 g of methane? assume 100% yield for both reactions. enter to 0 decimal places. are the equations balanced?

Answers

The balanced chemical equation for the complete combustion of methane is: CH4 + 2O2 -> CO2 + 2H2O. the mass of potassium chlorate  needed to burn 131.8 g of methane is 999.47 g.

The number of moles of methane can be calculated as follows:

131.8 g methane / 16.04 g/mol = 8.22 moles

From the balanced chemical equation, we can see that 2 moles of oxygen are required to burn 1 mole of methane, so the number of moles of oxygen needed to burn 8.22 moles of methane is 2 * 8.22 moles = 16.44 moles.

The balanced chemical equation for the decomposition of potassium chlorate to produce oxygen is: 2KClO3 -> 2KCl + 3O2

So, for every 2 moles of potassium chlorate decomposed, 3 moles of oxygen are produced. Hence, to produce 16.44 moles of oxygen, we need 16.44 moles / 3 moles/2 moles of KClO3 = 8.22 moles of KClO3.

The mass of potassium chlorate required can be calculated as follows:

8.22 moles * 122.55 g/mol = 999.47 g

So, the mass of potassium chlorate required to supply the proper amount of oxygen needed to burn 131.8 g of methane is 999.47 g.

Learn more about methane here:

https://brainly.com/question/2127750

#SPJ4

which of the following aqueous solutions has the lowest freezing point and the highest boiling point? which of the following aqueous solutions has the lowest freezing point and the highest boiling point? 0.05 m na3po4 0.050 m nacl 0.100 m sucrose 0.050 m cacl2

Answers

The aqueous solution with the lowest freezing point and highest boiling point is 0.100 M sucrose.

Freezing point depression and boiling point elevation are directly proportional to the molality (moles of solute per kilogram of solvent) of a solution. Since 0.100 M sucrose has the highest concentration of solute, it will also have the greatest effect on both freezing point depression and boiling point elevation. NaCl, CaCl2, and Na3PO4 have similar molalities, so they will have similar effects on freezing point depression and boiling point elevation.A colligative property is a physical characteristic that depends on the quantity of solute supplied rather than the type of solute; for example, the freezing point will be lowered by the same amount of degrees Celsius whether we add 1000 sugar or salt particles to water.

Learn more about freezing point here:

https://brainly.com/question/3121416

#SPJ4

Chemistry help please and thank you so much

Answers

In a chemical equation, reactants are substances before the reaction, subscripts are numbers added in front of chemical formula, chemical formula is representation of elements in compound,products are substances present after chemical reaction, coefficients are numbers showing the amount of individual atoms.

What is chemical equation?

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

Learn more about chemical equation,here:

https://brainly.com/question/28294176

#SPJ1

A 300 kg car is moving with an acceleration of 10 m/s/s. What is the force of this car?

Answers

The force of the 300kg car moving with an acceleration of 10m/s² is 3000N.

How to calculate force?

Force in physics refers to a physical quantity that denotes ability to push, pull, twist or accelerate a body.

The force of a body can be estimated by multiplying the mass of the body by its acceleration as follows:

Force = mass × acceleration

In this question, a 300kg car is said to be moving at an acceleration of 10m/s². The force is estimated as follows:

Force = 300kg × 10m/s²

Force = 3000N

Learn more about acceleration at: https://brainly.com/question/1046166

#SPJ1

A tank of compressed helium contains 50.0 g helium. How many moles of helium are in the tank?

Answers

A tank of compressed helium contains 50.0 g helium. 12.49 moles of helium are in the tank.

What do you mean by mole ?

The term mole is defined as the amount of substance of a system which contains as many elementary entities.

One mole of any substance is equal to 6.023 × 10²³ units of that substance such as atoms, molecules, or ions. The number 6.023 × 10²³ is called as Avogadro's number or Avogadro's constant.

The mole concept can be used to convert between mass and number of particles.

Number of moles = Mass / molar mass

= 50.0 / 4.003

= 12.49 moles

Thus, A tank of compressed helium contains 50.0 g helium. 12.49 moles of helium are in the tank.

To learn more about the mole, follow the link;

https://brainly.com/question/26416088

#SPJ1

Other Questions
the magna carta was important because it established? an advertisement has been placed on your companys and on major recruitment websites for a great opportunity to be employed as country manager at abc insurance company in the uae. you read the job description and believe you are a fir for this position. you want to negotiate with the general manager, dr david smith, that you would like to excel and get promoted as the country manager, from your current position as the dubais branch manager. this position will provide you with many opportunities such as a higher salary, more responsibilities, and utilizing more of your technical and leadership skills. in addition, you have been working with the company since september 2015 as a full-time employee and have made enormous contributions to the organization. from your experience, you have also determined that dr smith is a thinker personality type as per the myers-briggs type indicator.What are the essential techniques and strategies in the context of negotiation? pick the correct statement from below. multiple choice nasdaq is a broker market. the nyse is a dealer market. the exchange with the strictest listing requirements is nasdaq. some large companies are listed on nasdaq. most debt securities are traded on the nyse. The Prohibition Party is considered to be what type of third party?those that broke away from the two major political partiesthose that have only one goal they are working towardsthose formed to helped a specific group of peoplethose that have broad programs and seek national favorthose made up of left-wing protest g Type 2 diabetes accounts for the majority of adult diabetes cases.FalseTrue an adult with twice the mass of the student is also on the ride and remains stuck to the wall while the ride is rotating just like the student. derive an algebriac expression to show that the mass of the rider does not determine if the ride will remain stationaty against the wall while the ride is rotating how did the location of russia affect its development? CAN SOMEONE PLEASEEEE HELP I GOT TO TURN THIS IN IN LIME 5 MINUTES a max, inc. deposited $2,000 in a bank account that pays 12% interest annually. how many periods would it take for the deposit to grow to $6,798 if the interest is compounded semiannually? 5) choose the best answer. using the knowledge about the moon phases, how many spring and neap tides occur each month on average? will savers make their investment directly in individual securities rather through financial intermediaries such as mutual funds? what is the area of a circle with a diameter of 15.8 cm? use 3.14 for pi and round your final answer to the nearest hundredth. enter your answer in the box. question is in the screenshot a phenomenon that we think will help us explain the political characteristics or behavior that interests us is called a(n) . question a manufacturer of cell phone screens has found that 5 percent of all screens produced have defects. let pd represent the population proportion of all cell phone screens with a screen defect, therefore pd bam makes a second solution, adding 6.41 g of co(ch3coo)2 to 36.45 ml of h2o. calculate the concentration of this solution in mole fraction. The macromolecule that can accomplish the widest range of biological functions areA. carbohydratesB. proteinsC. nucleic acidsD. lipidsE. glycolipids a client is undergoing diagnostic testing for mitral stenosis. what statement by the client during the nurse's interview is most suggestive of this valvular disorder? (Figure: Demand for Bus Rides) The city of Vaughan in Ontario, Canada, opened a new subway line that extended the existing subway system between the greater Toronto area and the city of Vaughan. The route previously only had bus service. Which of the following graphs depicts the effect you would expect to see on the demand for bus rides on this route after the introduction of the subway? B D Price Price Prio Old price Now prio New price Old pro Old demand New demand Quantity Demand CH New Quantity Qurity guarity Demand New Ok Quantity quantity quantity Old Germand Quandy Graph C Graph D Graph B Graph A 2)When you get hired for a well-paying job, you will most likely view older used cars as complementary goods. normal goods. inferior goods. substitute goods. 3) Which of the following scenarios illustrates the law of demand? I Kathleen eats more steak when the price is low, and less when the price is high. Francis does not care about the price of coffee at the coffee shop - he must buy two cappuccinos every day, regardless of the price. A research company finds that the more expensive a particular brand of a designer handbag, the more that consumers are willing to purchase the brand. John likes to drink spring water. At $2 he buys four bottles of water, and at $1.50 he still buys four bottles of water. Focus break down foods into smaller molecules through hydrolysis. true or false