Phosphorus (P) having atomic number 15 can only make a maximum of five bonds.
Describe phosphorus.A mineral called phosphorus is found in many foods naturally and can also be taken as a supplement. It has a number of functions in the body. It is a crucial component of cell membranes, bones, and teeth. It maintains a normal range of blood pH and aids in the activation of enzymes.
What foods are phosphorus-rich?Many meals naturally contain phosphorus, but dairy, poultry, shellfish, legumes, and nuts are the largest sources. These foods contain what is referred to as organic phosphorus. Animal foods absorb it more effectively than plant foods do.
To know more about phosphorous visit :
https://brainly.com/question/28399430
#SPJ4
you mix 2 moles of HBr with 3 moles of KOH in enough water to make 1 L of solution. what is the pH of your final solution?
a. 7
b. 1
c. 14
d. 14
e. 13
As the reaction is a neutralization reaction, mixing 2 moles of HBr with 3 moles of KOH will give solution of pH of 7.
What is a mole?Mole is defined as the unit of amount of substance . It is the quantity measure of amount of substance of how many elementary particles are present in a given substance.
It is defined as exactly 6.022×10²³ elementary entities. The elementary entity can be a molecule, atom ion depending on the type of substance. Amount of elementary entities in a mole is called as Avogadro's number.
It is widely used in chemistry as a suitable way for expressing amounts of reactants and products.For the practical purposes, mass of one mole of compound in grams is approximately equal to mass of one molecule of compound measured in Daltons. Molar mass has units of gram per mole .
Learn more about mole,here:
https://brainly.com/question/26416088
#SPJ1
in general, which characteristics are necessary for a location to be suitable for chemical storage? select one or more: warm dark dry poorly-ventilated cool
Warm, dark, and poorly-ventilated locations are generally not suitable for chemical storage. it can be stored in cool places most of the time.
In general, a location suitable for chemical storage should be:
Cool: Many chemicals are temperature-sensitive and can degrade or react with other substances if exposed to high temperatures.
Dry: Moisture can cause some chemicals to react or degrade, and can also increase the risk of fire or explosion if electrical equipment is present.
Well-ventilated: Proper ventilation is important to ensure that fumes or vapors generated by the chemicals are safely dispersed.
Away from sources of heat and ignition: Chemicals should be stored away from sources of heat, sparks, and flames, to minimize the risk of fire or explosion.
Learn more about chemical storage here: brainly.com/question/8038400
#SPJ4
Complete question:
in general, which characteristics are necessary for a location to be suitable for chemical storage? select one or more:
A. Warm
B. Dark
C. Dry
D. Poorly-ventilated cool
The fact that each type of atom has a unique pattern of electron orbits helps explain why?
The fact that each type of atom has a unique pattern of electron orbits because various elements have varying quantities of protons and varied numbers and configurations of electrons causes unique spectral pattern.
Do all atom types have a distinct emission spectrum?
Each atom includes a large number of potential electron transitions, and each transition has a discrete energy difference. An emission spectrum is composed of a variety of transitions that produce different radiated wavelengths. The emission spectra of each element is specific.
Why are emission spectra even present in atoms?When excited electrons from elevated energy levels descend to lower energy levels, atomic emission spectra are emitted. The energy difference between the two energy levels the electron changed between is radiated by them as a photon (light).
Learn more about electron here:
brainly.com/question/20847722
#SPJ4
what two types of energy is usually a product of combustion reactions?
When a chemical combines with oxygen gas, it produces a combustion process that releases electrons in the form of heat and light.
What is Ncert for combustion?Combustion is the name given to the chemical reaction in which a material combines with oxygen to produce heat. A material is considered to be combustible if it can burn. Another name for it is fuel.
Combustion is a form of reaction, right?Redox reactions include combustion processes. An illustration of a combustion process with oxygen acting as the oxidant. A molecule combining C and H reacts with O2 to produce CO2 and H2O in the combustion process, which is the subject of many chemical textbooks. There are situations when the reactant contains additional elements like O, S, or N.
To know more about Combustion visit :
https://brainly.com/question/13153771
#SPJ4
a solution is prepared by dissolving 17.75 g sulfuric acid, h2so4, in enough water to make 100.0 ml of solution. if the density of the solution is 1.1094 g/ml, what is the mole fraction h2so4 in the solution?
if the density of the solution is 1.1094 g/ml, then the mole fraction [tex]H_{2}SO_{4}[/tex] in the solution is 0.0016.
The molar mass of (98.08 g/mol) can be used to calculate the number of moles:
moles of [tex]H_{2}SO_{4}[/tex] = mass / molar mass
moles of [tex]H_{2}SO_{4}[/tex] = 17.75 g / 98.08 g/mol = 0.1810 mol
The total mass of the solution can then be calculated using the density of the solution (1.1094 g/ml):
mass of solution = density x volume
mass of solution = 1.1094 g/ml x 100 ml = 111 g
Finally, the mole fraction of [tex]H_{2}SO_{4}[/tex] in the solution can be calculated by dividing the number of moles of [tex]H_{2}SO_{4}[/tex] by the total number of moles of solute in the solution:
In the solution, the mole fraction of [tex]H_{2}SO_{4}[/tex] is approximately 0.0016.
mole fraction [tex]H_{2}SO_{4}[/tex] = moles [tex]H_{2}SO_{4}[/tex] / (moles [tex]H_{2}SO_{4}[/tex] + moles water)
mole fraction [tex]H_{2}SO_{4}[/tex] [tex]= \frac{0.1810}{\frac{(0.1810+(111-17.75)}{18} } = 0.0016[/tex]
Because we have assumed that the density of water is close to 1 g/mL, we can calculate the moles of water in the solution by dividing the mass of water by its molar mass (18 g/mol).
To Learn More About density click
https://brainly.com/question/29775886
#SPJ4
in the proton nmr spectrum for this compound, how many signals would you expect to see for the two hydrogens drawn on the right side of this molecule?
In the proton nmr spectrum for this compound, Only one signal will be produced in its spectrum.
A molecule is a collection of two or greater atoms held together by means of appealing forces referred to as chemical bonds; relying on context, the time period may additionally or won't encompass ions that satisfy this criterion. In quantum physics, organic chemistry, and biochemistry, the distinction from ions is dropped and the molecule is frequently used when relating to polyatomic ions.
Standards much like molecules have been discussed due to the fact that ancient times, but modern-day research into the character of molecules and their bonds started in the seventeenth century. refined over the years by means of scientists including Robert Boyle, Amedeo Avogadro, Jean Perrin, and Linus Pauling, the have look at molecules is nowadays called molecular physics or molecular chemistry.
To learn more about Molecule visit here:
brainly.com/question/19922822
#SPJ4
if one electron in an atom is excited but does not have enough energy to escape, the energy of the excited electron must have one of a set of quantized values.
The statement, if one electron in an atom is excited but does not have enough energy to escape, the energy of the excited electron must have one of a set of quantized values, is true.
What is an electron?An electron is a subatomic particle with negative charges that can be free or connected to the atom (not bound). The electron, which is attached to an atom, is one of the three primary types of particles found there. Protons and neutrons make up the other two.
How do protons and electrons differ?A subatomic particle having a negative charge is an electron. A subatomic particle having a positive charge is called a proton. The powerful nuclear force holds protons together in the nucleus of an atom. A kind of subatomic particle without charge is the neutron (they are neutral).
To know more about electron visit :
https://brainly.com/question/18367541
#SPJ4
The complete question is -
If one electron in an atom is excited but does not have enough energy to escape, the energy of the excited electron must have one of a set of quantized values. a. True b. False
Can you guys please help me
The dish A will be chosen for the top dishes would make the food dish the warmest when placed on top of it.
What is energy ?The term energy is defined as the “ability to perform work, which is the ability to exert a force causing displacement of an object.”
The diagram clearly shows that the dish A contains the highest energy molecules, each with an energy of 30. Heat is an energy form. It is energy that is transferred between substances or systems due to a temperature difference.
Thus, choosing a dish that has maximum energy will provide the maximum heat.
To learn more about the energy, follow the link;
https://brainly.com/question/1932868
#SPJ1
a sample of pure lithium nitrate contains 7.99% lithium by mass. what is the % lithium by mass in a sample of pure lithium nitrate that has twice the mass of the first sample?
According to the query, the bigger sample's lithium content is 15.98% by mass.
What is the purpose of lithium nitrate?Lithium nitrate is a crystalline (sand-like), colorless or white powder or granule. It serves as a heat-exchange medium and scientific reagent.
Let's name the first sample's mass "m1." Since the first sample has a lithium content of 7.99% by mass, its lithium mass is 0.0799 * m1 g.
Take into account a measurement of purest lithium nitrate that is two times as massive as the initial sample. Consider that mass "m2" for short. The weight of lithium with in sample drawn equals 0.0799 * 2 * m1 Equals 0.1598 * m2 g since m2 = 2 * m1.
As a result, the bigger sample's greater% lithium by mass is (0.1598 * m2) / m2 * 100% = 0.1598 * 100% = 15.98%
To know more about Lithium Nitrate visit :
https://brainly.com/question/29355805
#SPJ4
why is it necessary to balance chemical equations
Answer:
to satisfy the law of conservation of mass
Explanation:
have great day
Answer:
It is necessary for chemical equations to be balanced because of the law of conservation of mass (the mass of the products = the mass of the reactants).
Chemical equations follow/represent this law
assuming ideal solution behavior, what pressure of carbon dioxide is needed to maintain a co2 concentration of 0.10 m in a can of lemon-lime soda?
A pressure of 0.00305 atm of CO2 is needed to maintain a concentration of 0.10 M in a can of lemon-lime soda.
Assuming ideal solution behavior, the pressure of carbon dioxide required to maintain a concentration of 0.10 M in a can of lemon-lime soda can be calculated using the Henry's law constant.
Henry's law states that the pressure of a gas over a solution is proportional to the concentration of the gas in the solution. Mathematically, it can be expressed as:
P = k * C
where P is the pressure of the gas, C is the concentration of the gas in the solution, and k is the Henry's law constant.
Since the concentration of CO2 in the soda is 0.10 M, the pressure needed to maintain this concentration can be calculated as:
P = k x C
=> k x 0.10
The value of the Henry's law constant for CO2 in water varies with temperature, pressure, and the presence of other solutes. However, at 25°C and 1 atm pressure, the value of k is approximately 0.0305 M/atm.
So, the pressure of CO2 needed to maintain a concentration of 0.10 M in a can of lemon-lime soda at 25°C and 1 atm pressure is:
P = k x C
=> 0.0305 x 0.10
=> 0.00305 atm
To learn more about Henry's law constant :
https://brainly.com/question/14559300
#SPJ4
What is the volume of 0.1 mole of methane ( )? (one mole of any gas occupies 22.4 l under certain conditions of temperature and pressure. assume those conditions for this question.) question 20 options: 2.2 l 20 l 22.4 l 44.8 l
2.2 L is the volume of 0.1 mole of methane. 1 mole of gas occupy 22.4 L volume at STP .
As we know 1 mole of gas occupy 22.4L volume at STP and the standard temperature and pressure is 273 K and 1 atm.
For 0.1 mole of methane,
0.1/1 × 22.4L
= 2.24 L
Therefore 0.1 mole of methane occupy 2.24 L volume.
Methane is a first compound of the alkane category , it is a colorless, odorless and flammable gas.
Learn more about mole here :
https://brainly.com/question/29367909
#SPJ4
a flask contains three gases, nitrogen, oxygen, and ammonia. the nitrogen has a partial pressure of 6.52 atm, the oxygen has a partial pressure of 886 torr, and the ammonia has a partial pressure of 2,487 kpa. what it the total pressure in the flask expressed in atm?
To find the total pressure in the flask, First we need to add up the partial pressures of the three gases.
After that we have to convert the partial pressure of oxygen to atmospheres and the partial pressure of ammonia to atmospheres.
1 atm = 760 torr
Therefore, the partial pressure of oxygen in atmospheres is:
886 torr / 760 torr/atm = 1.1667 atm
1 atm = 101.325 kPa
Then, the partial pressure of ammonia in atmospheres is:
2,487 kPa / 101.325 kPa/atm = 24.57 atm
The total pressure in the flask would be-
6.52 atm + 1.1667 atm + 24.57 atm = 32.2567 atm
Rounding to three decimal places:
32.2567 atm = 32.257 atm
Hence, The total pressure in the flask is 32.257 atm.
To know more about Total pressure refer to-
brainly.com/question/30255561#
#SPJ4
what two types of energy is usually a product of combustion reactions?
When a material combines with oxygen gas, it produces electricity in the form of both heat and light. These two energies combine to generate a flame.
What are the uses of oxygen?The energy-producing process that powers the metabolic functions of most living organisms, respiration, depends heavily on oxygen. All living things, including humans, depend on the air that you breathe to survive.
Or is oxygen a gas?Since oxygen has an atomic number of 8 and the official chemical symbol O, an oxygen atom contains eight particles in its nuclei. At room temperature, oxygen is a gas that has no flavor, color, or odor. In nature, oxygen exists as a molecule.
To know more about oxygen visit:
https://brainly.com/question/13370320
#SPJ4
there are two naturally occurring isotopes of chlorine. cl35 has a mass of 34.9689 u.cl37 has a mass of 36.9659 u. cl 35 has a mass of 34.9689 u. cl 37 has a mass of 36.9659 u. determine the abundance of each isotope.
The abundance of chlorine-35 isotope is 34.964 u and that of chlorine-37 isotope is 55.44 u.
What are isotopes?Isotopes are defined as substances having same number of protons but different number of neutrons.Number of protons is characteristic for determining position of elements in the periodic table.
Since,all isotopes have the same number of protons and hence have same position.They have similar chemical properties as they have same number of electrons.
They find applications in the field of nuclear medicine and oil and gas research . There are 2 types of isotopes : stable and unstable
Abundance of chlorine-35= 34.9689×2/2=34.964 u and that of chlorine -37 is 36.9659×2/2=55.44 u.
Learn more about isotopes,here:
https://brainly.com/question/12955625
#SPJ1
in a combination reaction, of lithium is mixed with of oxygen. the product is an ionic solid. how many grams of each reactant
In a combination reaction, 1.50 g of lithium is mixed with 6.98 g of oxygen. The product is an ionic solid. The reactant will be
First we should write the reaction is:
4Li + O₂ → 2Li₂O
First we should calculate Moles of lithium in 1,50g are:
1,50g × (1mol / 6,941g) = 0,216 moles of Li
Moles O₂ = 6,98g × (1mol / 32g) = 0,218 moles of O₂
The complete reaction of oxygen will be
0,218 mol ₓ (4mol Li / 1 mol O₂) = 0,872 moles of Li.
The excess reactant is oxygen since there are more moles of oxygen than the amount of lithium that is needed.
Lithium is the limiting reactant, hence the product generated is moles of lithium ÷2, that is, 0,108 moles
After the reaction there are 0 moles of Li, 0,218 - 0,216× (1 mol O₂/4 mol Li) = 0,164 moles of O₂ and 0,432 moles of Li₂O. In grams:
0g Li
0,164 mol ₓ (32g / mol) = 5,25g of O₂
0,108mol Li₂O ₓ (29,88g / mol) = 3,23g of Li₂O
Your question is incomplete but most probably your full question was
In a combination reaction, 1.50 g of lithium is mixed with 6.98 g of oxygen. The product is an ionic solid. how many grams of each reactant and product are present ?
Learn more about reaction at https://brainly.com/question/26152090
#SPJ4
greenhouse gases like co2 trap the outgoing thermal radiation from the surface that cools the earth, and only allow that radiation to be emitted to space and cool the climate system from an atmospheric altitude of about 12 km in the ir regions (wavelength bands) where co2 absorbs. describe all the changes that occur in the climate system what happens after we increase co2 in the atmosphere. assume that a radiative balance (ein
When the atmospheric concentration of CO2 increases, the greenhouse effect intensifies, and more thermal radiation is trapped and re-radiated back towards the surface. This leads to a warming of the surface, as well as the overall climate system, including the atmosphere.
When CO2 is increased in the atmosphere:
The total CO2 opacity of the atmosphere increases, meaning that the ability of CO2 to trap outgoing thermal radiation from the surface and prevent its escape to space increases.As a result of the increased CO2 opacity, the Earth's surface warms due to the trapping of more thermal radiation.To maintain a radiative balance (EIN = EOUT), the increased radiation from the warmer surface balances the reduced radiation from the CO2 bands.The altitude where CO2 can emit radiation to space does not decrease to 6 km. The altitude where CO2 can emit radiation to space depends on the atmospheric temperature profile and pressure, which are determined by the overall radiative balance, and not just the amount of CO2 in the atmosphere.Learn more about radiation here:
https://brainly.com/question/24200572
#SPJ4
which of the following pure substances has the highest boiling point? group of answer choices cbr4 cf4 ci4 ch4 ccl4
The boiling points of pure substances are directly proportional to their molar mass. Moreover, boiling points are directly proportional to molecular attractions. the given, CBr4 has the highest boiling point.
The molar mass of a substance is the mass in grams of one mole of the compound.
A mole is the number of entities present in a substance, such as atoms, molecules, and ions. A mole of any substance is 6.0221023 molecules. Just as we use a standard value to calculate different things, such as 1 dozen = 12 items, we use the mole to calculate the size of the smallest entities quantitatively. We'd all like to know how many molecules are present in a given substance. Molecules and atoms are extremely small, both in size and mass. To calculate the molar mass, add the atomic masses (atomic weights) of all atoms in the molecule.
Learn more about molar mass here:
https://brainly.com/question/28884993
#SPJ4
determine the molality of a solution of methanol dissolved in ethanol for which the mole fraction of methanol is 0.126.
The molality of a solution of methanol dissolved in ethanol for which the mole fraction of methanol is 0.126 is 0.10m
We are given:
Mole fraction of methanol = 0.126
This means that 0.126 moles of methanol is present in 1 mole of a solution
Moles of ethanol = 1 - 0.126 = 0.874 moles
To calculate the mass for given number of moles, we use the equation:
Moles of ethanol = 0.874 moles
Molar mass of ethanol = 46 g/mol
Mass of ethanol=0.874*46=40.204g
To calculate the molality of solution, we use the equation:
Molarity=msolute*1000/Msolute*Wsolvent
Where,
m solute = Given mass of solute (methanol) = 0.126 g
Msolute = Molar mass of solute (methanol) = 32 g/mol
Wsolvent = Mass of solvent (ethanol) = 40.204 g
Putting values in above equation, we get:
Molality=0.126*1000/32*40.204=0.0979=0.10m
Hence, the molality of the solution is 0.11 m
Learn more about Molar mass :
brainly.com/question/837939
#SPJ4
Frost appears on a window on a cold winter day. Name the process and whether it is exothermic or endothermic? Select one: O a. Melting, exothermic O b. Deposition, exothermic c. Deposition, endothermic d. Condensation, endothermic
The process that is occurring on the window is called deposition and it is an exothermic process. This occurs when a gas or vapor changes directly into a solid without first becoming a liquid.
Condensation is a process in which a gas turns into a liquid. It is an exothermic process, meaning that it releases energy in the form of heat.
This release of energy lowers the temperature of the surroundings, resulting in a decrease in the heat energy of the water particles. The decrease in heat energy causes the water molecules to slow down and form a liquid.
This process of condensation is what causes frost to appear on a window on a cold winter day.
Learn more about exothermic process.
https://brainly.com/question/25805101
#SPJ4
the students wanted to deduce the name of the acid they carried out a test that showed that the acid contains sulfate ions. (I)name the reagent that they added to the acid
The acid which contains sulfate ions can be tested by the reagent which is barium chloride.
What are acids?Acids are defined as substances which on dissociation yield H+ ions , and these substances are sour in taste.
According to the number of H+ ions which are generated on dissociation acids are classified as mono-protic , di-protic ,tri-protic and polyprotic acids depending on the number of protons which are liberated on dissociation.
Acids are widely used in industries for production of fertilizers, detergents batteries and dyes.They are used in chemical industries for production of chemical compounds like salts which are produced by neutralization reactions.
Learn more about acids,here:
https://brainly.com/question/29796621
#SPJ1
a chemist collects n2 gas over water at 110 c temperature and 1752.6 torr pressure. what is the partial pressure of the n2 gas?
The correct answer is
At sea level with an atmospheric pressure of 760 mm Hg, the partial pressures of the different gases may be computed to be 593 mm Hg for nitrogen, 160 mm Hg for oxygen, and 7.6 mm Hg for argon.
The idea of partial pressure is derived from the fact that each individual gas contributes to the overall pressure in a given proportion, which corresponds to its partial pressure. In order to characterize all the pieces, it is essentially equivalent to taking a percentage or fraction of the whole. Any standard pressure unit can be used to quote partial pressures. Typically, atmospheres or pascals are used (Pa). N m-2 and Pascals are exact equivalents (newtons per square meter).When trying to predict gas flow, it is essential to take partial pressure into account. Keep in mind that gases frequently equalize their pressure in nearby places. An location with a greater partial pressure will have a gas flow, and vice versa.
To learn more about Partial Pressure click the link below
brainly.com/question/13199169
#SPJ4
The question is in the photo for you.
The number of grams of KClO₃ needed to make 0.402 moles of oxygen gas is 32.8 grams
How to calculate mass using stoichiometry?Stoichiometry refers to the quantitative relationship between the reactants and products of a specific reaction or equation.
According to this question, pottasium chlorate decomposes to form pottasium chloride and oxygen gas as follows:
2KClO₃ → 2KCl + 3O₂
2 moles of pottasium chlorate decomposes to form 3 moles of oxygen gas.
0.402 moles of oxygen gas will be produced as a result of the reaction of 0.268 moles
mass = 0.268 moles × 122.55 g/mol
mass = 32.8 grams.
Learn more about mass at: https://brainly.com/question/9743981
#SPJ1
what properties does silicon share with carbon that would make silicon-based life more likely than, say, neon-based life or aluminum-based life?
silicon is more likely neon-based life as it is closely related to carbon in periodic table.
carbon's nearest analogue is silicon. Tetravalent elements like silicon and carbon primarily form covalent (non-ionic) compounds. Surprisingly, there aren't many similarities between them other than the fact that both atoms "can make four covalent bonds."
On the periodic table, silicon (Si) is in the same family as carbon (C). Similar to carbon, it can interact with oxygen, create polymers, and establish bonds with four other atoms simultaneously (O2). Silicon's ability to produce molecules large enough to carry biological information could lead to the development of life on its platform.
The thought that silicon-based life, if it could exist at all, may only exist at very high temperatures has given rise to the terms "lavolobes" and "magmobes." Silicon is inert at the mild temperatures in the habitats in which life as we know it exists. Hence, silicon share neon-based life.
For more such questions on silicon, refer:
https://brainly.com/question/953530
#SPJ4
what are the lightest or least massive of the fundamental atomic particles? group of answer choices uranium nuclei neutrons protons electrons
The lightest or least massive of the fundamental atomic particles are electrons. Correct answer: letter E
Electrons have a mass of 9.109 × 10^−31 kg, which is much smaller than the masses of protons (1.672 × 10^−27 kg) and neutrons (1.674 × 10^−27 kg).
The amount of energy an electron has is related to its location within an atom. Electrons can exist in discrete energy levels, and can be moved between them by providing energy in the form of light or heat. This movement of electrons between energy levels is responsible for most of the physical and chemical properties of atoms and molecules. Electrons can also form bonds between two atoms, allowing them to form molecules and compounds.
Learn more about Atomic particles :
https://brainly.com/question/28763045
#SPJ4
calculate the freezing point (in degrees c) of a solution made by dissolving 1.63 g of urea {co(nh2)2} in 40.8 g of water. the kfp of the solvent is 1.86 k/m and the normal freezing point is 273.15 k.
The freezing point of the solution made by dissolving 1.63 g of urea in 40.8 g of water is -0.15124°C.
The freezing point of a solution is a measure of the amount of a solute that has been dissolved in a solvent. The freezing point depression of a solution is the difference between the freezing point of the pure solvent and the freezing point of the solution.
Calculating freezing point depression.
ΔTf = Kf * molality
Where:
ΔTf is the change in freezing point (in K)
Kf is the freezing point depression constant (in K/m)
Molality is the ratio of moles of solute to kilograms of solvent (m)
We must first determine the solution's molality:
1.63 g of urea (molecular weight = 60.06 g/mol) is equivalent to 0.0271 moles of urea:
0.0271 moles / 40.8 g of water = 0.000661 moles/g
Next, we can calculate the change in freezing point:
ΔTf = Kf * molality
ΔTf = 1.86 K/m * 0.000661 moles/g
ΔTf = 0.00124 K
Finally, we can calculate the new freezing point of the solution:
273.15 K - 0.00124 K = 272.99876 K
Converting from Kelvin to Celsius:
272.99876 K - 273.15 = -0.15124°C
Therefore, the freezing point of the solution made by dissolving 1.63 g of urea in 40.8 g of water is -0.15124°C.
To know more about molality please refer:
https://brainly.com/question/26921570
#SPJ4
2.0 moles of trifluoroisocyanomethane gas undergoes an isothermal process. if the volume of the gas halves, by what factor does the pressure of the gas change?
The pressure of the gas increases by a factor of 2 when the volume of the gas halves. The Ideal Gas Law was used to calculate the change in pressure that occurred when the volume of the gas was halved.
For an isothermal process, the temperature remains constant. According to the Ideal Gas Law, the pressure, volume, and number of moles of a gas are related as follows:
PV = nRT
Where P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is the temperature in kelvin.
Let's assume the initial volume of the gas is V1, the initial pressure is P1, and the final volume is V2. We can use the Ideal Gas Law to relate the initial and final volumes and pressures:
P1V1 = nRT = P2V2
Since n and T are constant, we can rearrange the equation to relate the initial and final pressures:
P2 = P1 x (V1 / V2)
In this case, the volume of the gas halves, so V2 = V1 / 2. Substituting this into the equation, we get:
P2 = P1 x (V1 / (V1 / 2)) = P1 x 2
Therefore, the pressure of the gas increases by a factor of 2 when the volume of the gas halves.
The Ideal Gas Law is used to describe the behavior of gases under different conditions and to predict how a gas will respond to changes in pressure, volume, temperature, and the number of moles. For example, if the temperature of a gas is kept constant, the Ideal Gas Law can be used to calculate the pressure of the gas if its volume is changed.
Learn more about isothermal process here:
https://brainly.com/question/12023162
#SPJ4
Two graduated cylinders, one filled with water to 17 milliliters and one with water and a key filled to 25 milliliters.
Calculate the volume of this irregular solid to the nearest cubic centimeter.
What is the volume of the key?
Here, assume that the two cylinders are initially filled with 17 ml of water. But the water level in the second beaker raised to 25 m/ Then the difference in water level is the volume of the substance that is, volume of the key is 8 ml or 8 cm³.
What is Archimedes principal ?Archimedes principal states that, when an object is submerged in a fluid, the volume of displaced from the fluid is equal to the volume of the submerged object.
Objects with a density less than water will float on it. Whereas, objects denser than water will sink on it. Certain volume of water will replace or rises above by equal volume of the object.
Here, initially the water level was up to 17 ml. The water level raise up to 25 ml. Thus 8 ml of water is replaced by the key. Therefore, the volume of the key is 8 ml.
1 ml = 1 cm³
then volume of the key is 8 cm³.
Find more on Archimedes principle:
https://brainly.com/question/20351122
#SPJ1
residents around lake gunter have been warned not to drink their water because it contains some unknown chemical contaminant that could be harmful. what is this called? group of answer choices pollution negligence carelessness
Residents around lake Gunter have been warned not to drink their water because it contains some unknown chemical contaminant that could be harmful because of pollution. Option A is correct.
Residents around a lake are warned not to drink their water due to the presence of an unknown chemical contaminant, is called "pollution".
Pollution refers to the presence of substances in the environment that are harmful to living organisms or ecosystems, and can cause negative effects such as disease, death, or ecological imbalance. In this case, the lake water has been contaminated with an unknown chemical that could be harmful to human health, leading to the warning for residents not to drink it.
To know more about pollution here
https://brainly.com/question/23857736
#SPJ4
--The given question is incomplete, the complete question is
"Residents around Lake Gunter have been warned not to drink their water because it contains some unknown chemical contaminant that could be harmful. What is this called? A) Pollution B) Negligence C) Carelessness D) Recovery E) Biological disaster"--
Antoine Lavoisier is known for which of the following? (Select all that apply)
a.
studying gravity
b.
discovering oxygen
c.
the theory of general relativity
d.
the law of conservation of mass
e.
the theory of natural selection
Answer:
b. discovering oxygen
d. the law of conservation of mass