3.5 × 10^6 g
according to ideal gas equation, PV = nRT
where, p is pressure v is volume, n is mole of gas, r is gas onstant and t is temperature.
Pressure (p) = 741 Torr = 1 bar
Volume (V) = 5.40 ml= 0.0054litre
Amount of substance (n) mol = ?
Temperature (T) 44°C= 371kelvin
so by putting all values in equation. PV = nRT
= 1 × 0.0054 =n ×8.31 ×371
n ≈ 0.000002 = 2.0 × 10^-6
now, n is mole of gase,
mole = given mass ÷ molecular mass
given mass = 7.10g
molecular mass = given mass ÷ mole
7.10 ÷ 2.0 × 10^-6
= 3.5 × 10^6 g
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Question 5 of 10
When you think about whether most people are basically good or basically
bad, you are:
A. repeating beliefs you learned from your family.
B. exploring your own beliefs.
C. deciding what actions to take in your life.
OD. accepting the values of others.
SUBMIT
When you think about whether most people are basically good or basically
bad, you are exploring your own beliefs.
A person's beliefs will influence how they make decisions and react to circumstances. Most often, beliefs are established throughout childhood or other formative experiences.According to psychology, Beliefs can be positive or negative. Finding one's core beliefs can be difficult at times. It can take a lot of introspection, and some people might need a therapist's help to uncover their core beliefs.The downward arrow method can be used to identify your core beliefs. This entails tracing each idea back to the fundamental belief it was based on.You might occasionally make unfair or unjust assumptions about someone as a result of your attitudes and beliefs.therefore, according to the above-explained points, the above statement justifies the point of exploring your own beliefs.
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Zootopia movie:
How does Judy Hopps discover Nick Wolf’s true intentions/con?
Answer:
Judy is determined to make the world a better place while breaking preconceptions about other species. Nick views Judy as a nuisance at first. He also mentions having noticed her canister of Fox repellent when they first met, leading him to believe her to be a bigoted individual, which he detests.
Explanation:
Define global warming potential
Answer:
Global warming potential (GWP) is the heat absorbed by any greenhouse gas in the atmosphere, as a multiple of the heat that would be absorbed by the same mass of carbon dioxide (CO 2).
The following precipitation reaction can be used to determine the amount of copper ions dissolved in solution. A chemist added 5.00 × 10−2 L of a solution containing 0.173 mol L−1 Na3PO4(aq) to a 5.00 × 10−2 L sample containing CuCl2(aq). This resulted in a precipitate. The chemist filtered, dried, and weighed the precipitate. If 1.21 g of Cu3(PO4)2(s) were obtained, and assuming no copper ions remained in solution, calculate the following: the concentration of Cu2+(aq) ions in the sample solution. the concentrations of Na+(aq), Cl−(aq), and PO43−(aq) in the reaction solution (supernatant) after the precipitate was removed.
From the stoichiometry of the reaction, 0.094 g of [tex]Cu^{2+}[/tex] is contained in the reaction.
What is the amount of the copper ion?The reaction equation is given by; [tex]2Na_{3}PO_{4} (aq) + 3CuCl_{2} (aq) ----- > 6NaCl (aq) + Cu_{3}(PO_{4}) _{2} (s)[/tex]. We must note that the balanced reaction equation is the entry way into obtaining the correct stoichiometry of the reaction in order to solve the problem.
Number of moles of [tex]Na_{3}PO_{4}[/tex] = 5.00 × 10−2 L * 0.173 mol L−1 = 0.00865 moles
If 2 moles of [tex]Na_{3}PO_{4}[/tex] produces 1 mole of[tex]Cu_{3}(PO_{4}) _{2}[/tex]
0.00865 moles of [tex]Na_{3}PO_{4}[/tex] produces 0.00865 moles * 1 mole/2 moles
= 0.0043 moles of [tex]Cu3(PO4)2[/tex]
Number of moles of [tex]Cu^{2+}[/tex] = 0.0043 moles/3 = 0.00144 moles
Mass of [tex]Cu^{2+}[/tex] = 0.00144 moles * 63.5 g/mol = 0.094 g
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Chemistry
zinc tetraoxosulphate vi solution was electrolyzed in such a way that is 0.5A flowed for 32min 10 sec, deposited 0.325g of zinc at the Cathode · Calculate 1. The number of moles of zinc deposited (2) The number of Coulombs of electricity required to deposit I mole of zine (3) The charge on a zinc ion (IF = 96500C, zn=65)
the number of moles of zinc is 0.00492, and coulomb's of charge = 965coulumnbs and charge of zinc is +2
Zinc mass divided by zinc molar mass equals the number of moles of zinc deposited. Moles of zinc deposited in number=0.32/65 ,0.00492 moles of zinc were deposited.
the number of coulombs = I X t so 0.5 X 1930 sec so 965 coulombs.
The charge on zinc ion is +2
In the International System of Units, the unit of electric charge is the coulomb. It is equivalent to the electric charge delivered by a 1 ampere continuous current in 1 second and to 51018/0.801088317 in the current edition of the SI. fundamental charges
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the charge of zinc is +2, there are 0.0049 moles of zinc, and the coulomb's of charge are 965 coulombs.
The number of moles of zinc deposited is equal to zinc mass divided by zinc molar mass. Moles of zinc were deposited in number=0.32/65, amounting to 0.0049 moles.I times time equals 0.5 times 1930 seconds, or 965 coulombs.Zinc ion's charge is +2In the International System of Units, the unit of electric charge is the coulomb.It is equivalent to 51018/0.801 in the most recent edition of the SI, which is the electric charge produced by a 1 amp continuous current in a second.When a direct electric current is passed through an electrolyte, it causes chemical reactions at the electrodes and material degradation. Electrolysis is accomplished using an electrolyte, electrodes, and an external power source.
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The compound MgSO4 , Epsom salt, is used to soothe sore feet and muscles. How many grams will you need to prepare a bath containing 6.20 moles of Epsom salt?
Answer:
the value of the experiment with you and your family are doing well and that's what I was thinking took a break
58.6 grams to milligrams
Answer: If you mean converting 58.6 grams to milligrams that would be 58600
Explanation:
This is an impossible formula. Pretend it is real.
If you had 1 mol of Mn9(ClO4)2 how many moles of O would there be?
Remember that you should never include a 1 as a subscript but for the sake of clarity for this problem you may see a 1 as a subscript.
Make sure your answer includes TWO decimal places.
There are eight moles of oxygen atoms in 1 mole of [tex]Mn_{9}(ClO_{4}) _{2}[/tex].
What is the number of moles of oxygen atoms?We know that a compound is composed of atoms. The atoms that make up the molecule are chemically combined. It is usual that the number of atoms in the compound would correspond with the chemical formula.
Now we have the compound [tex]Mn_{9}(ClO_{4}) _{2}[/tex]. In one mole of the compound we have;
9 Moles of manganese atom2 moles of chlorine atom8 moles of oxygen atomThus, there are eight moles of oxygen atoms in 1 mole of [tex]Mn_{9}(ClO_{4}) _{2}[/tex].
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The electronic configuration 1s2,2s2,2p6,3s2 belongs to which element?
The electronic configuration 1s2,2s2,2p6,3s2 belongs to Magnesium.
Electronic configuration depicts the filling of electrons in the subshell and predicts the properties of the elements.The electronic configuration has two electrons in the outermost shell which depicts the alkaline earth metal group.Checking from the periodic table we get the element as magnesium.The distribution of electrons in an element's atomic orbitals is described by the element's electron configuration. Atomic electron configurations are represented via a common notation in which all atomic subshells that contain electrons (with the number of electrons written in subscript)Uses for electron configurations include: figuring out an element's valency, predicting a set of components' qualities (elements with similar electron configurations tend to exhibit similar properties).It also helps in analyzing atomic spectrum data.To learn more about electronic configuration visit:
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how many moles of nickel are in atoms are there in 9.00 X 10^9 Ni atoms
Answer:
1.49 x 10⁻¹⁴ moles Ni
Explanation:
To find the amount of moles in the sample, you need to multiply the amount of atoms by Avogadro's Number. This conversion is a ratio that describes how many atoms there are per every 1 mole. It is important to arrange the ratio in a way that allows for the cancellation of units (atoms should be in the denominator). The final answer should have 3 sig figs like the given value.
Avogadro's Number:
6.022 x 10²³ atoms = 1 mole
9.00 x 10⁹ atoms Ni 1 mole
--------------------------------- x -------------------------------- = 1.49 x 10⁻¹⁴ moles Ni
6.022 x 10²³ atoms
Currently, 118 elements are listed on
the periodic table. One thing that each
of these elements has in common is
that they are composed of what?
A. Carbon
B. Energy
C. Atoms
D. Mixtures
Answer:
C
Explanation:
Because they 2 or more atoms
What is the weight in grams of 0.45 moles of gold(Au)?
Answer:
88.63494750000001
Explanation:
Convert moles Gold to gram.
A carpet sells for $24.99 per square yard. What is the price of the carpet per square meter? How much will it cost to carpet an area of 1365 ft2?
The carpet sells for $24.99 per square yard, so the cost of the carpet per square meter area is $40,799.85.
What is the carpet area?The carpet area is that space in your home, which can be used for laying a carpet. It includes the thickness of the internal wall, but excludes the balcony or terrace.
Given that the price of the carpet is $24.99 per square yard, in the first step to convert the square yard to a square meter. 1 square yard = 0.836 square meters now in the second step, calculate the cost per square meter based on the relation in the above step we can write,0.836 square meters of carpet costs $24.99.
Therefore, the cost of 1 square meter of the carpet would cost of the carpet multiplied by one square meter and then divided by the unit in one square yard. From this, the price of the carpet per square meter is known. Price of the carpet per square meter = $24.99 * 1 sq meter/0.836 sq meter price of the carpet per square meter= $29.89. Now we have to find the Cost of the carpet area.
Cost of carpet area = $24.99* 1365 = $40,799.85.
Thus, the Cost of carpet area is $40,799.85.
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You are managing a large feed lot. A pharmaceutical company wants you to try a new antibiotic to treat shipping fever in newly arrived cattle. The company claims that it is more effective at a lower cost than your current antibiotic.
The dependent variable in the information regarding the cattles is D. Temperature of Cattle.
What is a dependent variable?A dependent variable is one that is altered as a result of the modification of an independent variable. Your independent variable "depends" on the outcome you're interested in measuring. Dependent variables are also known as response variables in statistics (they respond to a change in another variable)
It is something on which other elements depend. For instance, a test result might be a dependent variable because it depends on a number of variables, including how much you studied.
In this case, one will measure the temperature of the cattle to see whether or not it works. This is the dependent variable.
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You are managing a large lot of cattle. A pharmaceutical company wants you to try a new antibiotic to treat Shipping Fever in newly arrived cattle. The company claims that it is less expensive and more effective than the current antibiotic you are using. You will measure the temperature of the cattle to see whether or not it works. WHAT IS THE DEPENDENT VARIABLE (DV)?
Type of cow
Antibiotic
No Antibiotic
Temperature of Cattle
What is the scientific method?
A. A set of steps that help scientists gather knowledge
OB. A set of rules that all scientists need to follow
OC. A way for scientists to prove that their theories are correct
D. A way for scientists to come up with questions about the world
If the atom is assumed to be a sphere, what is the volume in cm^3 of a single Au atom?
Answer:
The equation for a volume of a sphere is V= (4/3)πr3
The above equations says we need to find the radius of our sphere. According to https://www.ptable.com/ the radius of a gold atom is 144 pm.
The questions wants the answer to be in cm3 which means we need to convert picometers into centimeters. 1cm= 1010pm
144pm x (1cm/1010pm) = 1.44 x 10-8cm
Now we plug the radius of the gold atom into the volume equation.
V= (4/3)π(1.44x 10-8cm)3 -----> Answer= 1.25x10-23 cm3
HOPE IT'S HELPS YOU3. An observation that includes numbers rather than simple word
descriptions is a?
a. hypothesis
c. variable
b. measurement
d. control
Do you think children are safe when they are taken to ECD centre during this pandemic crisis
Answer:
Yes
Explanation:
these gains towards early childhood development are now seriously threatened
Please help with this question
Answer:
You would use the meter stick on the right
Explanation:
The meter stick on the right has the little lines to see the decimal for a more accurate measure while the other you would have to guess.
Please can somebody help me
If you begin with a sample of carbon dioxide at − 60.0 ∘C and 0.50 atm and warm it to 30.0 ∘C and 0.50 atm , then there will be no phase transition in the sample. true or false
If a sample of carbon dioxide is at − 60.0 ∘C and 0.50 atm and warm to 30.0 ∘C and 0.50 atm, then there will be no phase transition in the sample is a True statement.
Phase Transition:
The three main states of matter are Solid, Liquid, and gas. A phase transition occurs from one state of matter to another when energy is supplied or cut.When energy is supplied to the molecules, solid converts to liquid, and liquid converts to gas. Then, the energy increases the speed of the molecules, the density decreases and phase transition takes place.On the other hand, when the supply of energy is stopped from the molecules, the gas turns to liquid, and liquid converts to solid. Both the temperature and pressure are in the same phase.Therefore, there will be no phase transition in the sample. Hence, it is a true statement.
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Which postulate of Dalton's atomic model was later changed and why?
According to postulates of the Dalton's atomic theory, atoms of same element are identical in all respects i.e., in shape, size, mass and chemical properties. However, after the discovery of isotopes, it was modified as : atoms of same element may not be similar in all respects
Using the two amino acids alanine and glycine, show a dehydration synthesis reaction forming a dipeptide. Draw the dipeptide of two amino acids joined together by a peptide bond. Label the peptide bond with an arrow. The position of the peptide bond is also the place in the molecule where a water molecule was removed and the two amino acids were joined by a dehydration synthesis reaction (also sometimes referred to as a condensation reaction).
A protein is composed of a combination of amino acids.
What is a peptide bond?A protein is composed of a combination of amino acids. The amino acids join together in a peptide bond. A number of peptide bonds give polypeptides which are the building blocks for proteins.
Now, we can see from the image that the polypeptide bond occurs between the carboxylic group of the glycine and the amine group of the alanine.
This leads to a loss of water molecule and a subsequent formation of the amide bond by condensation.
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A 1.50 gram sample of contain 3.32g of CO2 1.58g of N2O5 and 1.865g of H2O .Its molar mass is 102.2g/mol. Determine the emperical and molecular formulas.
The correct answer for emperical and molecular formula = C5H14N2 .
3.23 g x (12.011 / 44.0098) = 0.8815 g carbon
1.865 g x (2.016 / 18.0152) = 0.2087 g Hydrogen
1.58 g x (28.014 / 108.009) = 0.4098 g Nitrogen
1.50 g minus (0.8815 + 0.2087 + 0.4098) = 0.
Convert each element's mass to moles.
0.8815 g/12.011 g/mol = 0.0734 mol carbon
0.2087 g 1.008 g/mol = 0.207 mol Hydrogen
0.4098 g 14.007 g/mol = 0.02926 mol Nitrogen
Step three is to calculate the ratio of molar amounts expressed in the smallest, whole numbers.
0.0734 mol 0.02926 mol = 2.51 carbon
7.07 mol hydrogen = 0.207 mol 0.02926 mol
Nitrogen: 0.02926 mol = 1 Nitrogen: 0.02926 mol = 1
Doubling each value yields C = 5, H = 14.14, and N = 2, resulting in the empirical formula C5H14N2.
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what to use to measure The volume of a small stone.
Answer:
One way to measure the volume of any irregular object (in your case, a stone) is to submerge it completely under water and measure the change in the height of the water level.
Explanation:
Answer: WELCOME TO BRAINLY
Explanation: One way to measure the volume of any irregular object (in your case, a stone) is to submerge it completely under water and measure the change in the height of the water level. This change in the water level (let's say it goes from 50 mIlliliters to 65 milliliters) indicates that the stone has a volume of 15 milliliters.
Hope this helps!
Upon being diagnosed with Cirrhosis of the liver, doctors urge patients to limit the amount of salt intake in their diet to help decrease the rate of scarring. During salt intake the blood becomes increasingly (hypertonic, hypotonic) to the interstitial fluid. Due to this osmotic imbalance, the liver cells become (hypertonic, hypotonic) to the interstitial fluid. This causes the liver cells to appear (shriveled, swollen).
Upon being diagnosed with cirrhosis of the liver, doctors urge patients to limit the amount of salt intake in their diet to help decrease the rate of scarring. During salt intake the blood becomes increasingly hypertonic to the interstitial fluid. Due to this osmotic imbalance, the liver cells become hypotonic to the interstitial fluid. This causes the liver cells to appear swollen.
What is cirrhosis?Cirrhosis is a liver injury that is generated by various causes in which the liver begins to form fibrous because scars are generated in it. The lesions occur for different reasons, such as excessive alcohol consumption, and the liver will try to heal itself by forming scars, but as this happens, the cirrhosis worsens and can be fatal.
Therefore, we can confirm that upon being diagnosed with cirrhosis of the liver, doctors urge patients to limit the amount of salt intake in their diet to help decrease the rate of scarring. During salt intake the blood becomes increasingly hypertonic to the interstitial fluid. Due to this osmotic imbalance, the liver cells become hypotonic to the interstitial fluid. This causes the liver cells to appear swollen.
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Which of the following statements describe what a normative system is?
Explanation:
though the statements were not given let just give you a brief review of normative system.
A normative statement explains what should be base of the subject according to the belief through valued judgement that describes the fairness of the subject on public policy. Therefore, the unemployment rate should be lowered is a valued judgement based on the belief that it will bring economic welfare.
Normative systems, i.e., sets of norms, have two main. tions: a) to evaluate human actions, and b) to guide peop. The guidance and the evaluation based on a normativ. be good or bad.In social psychology three different normative behaviours have been identified: obedience, conformity and compliance.In the context of a normative system like law (or religion or morality), every statement of what one ought to do (or ought not to do) requires justification from a more general or basic statement. Such statements lead upward through the normative hierarchy until one reaches a foundational normative premise.
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2 NO(g) + O₂(g) 2 NO2(g)
5.)
A student investigates the reactions of nitrogen oxides. One of the reactions in the investigation requires an equimolar
mixture of NO(g) and NO, (g), which the student produces by using the reaction represented above.
(a) The particle-level representation of the equimolar mixture of NO(g) and NO₂(g) in the flask at the completion of the
reaction between NO(g) and O, (g) is shown below in the box on the right. In the box below on the left, draw the
particle-level representation of the reactant mixture NO(g) and O₂(g) that would yield the product mixture shown in
the box on the right. In your drawing, represent oxygen atoms and nitrogen atoms as indicated below.
Oxygen atom =
Reactant Mixture
Nitrogen atom =
Product Mixture
The moles of oxygen and nitrogen (ii) oxide required to give the product is 2 moles of oxygen and 8 moles of nitrogen.
What is a chemical reaction?A chemical reaction is a reaction in which atoms of elements or compounds undergoes changes to form new substances.
Chemical reactions are not easily reversible as a result of the large heat changes involved.
In the given reaction, oxygen reacts with nitrogen (ii) oxide to form nitrogen (iv) oxide.
The equation of the reaction is given below:
2 NO(g) + O₂(g) 2 NO₂(g)Considering the particle diagram shown, the product mixture consists of four moles of nitrogen (iv) oxide and four moles of nitrogen (ii) oxide. This indicates that the nitrogen (ii) oxide that reacted with oxygen was in excess.
From the equation of reaction, one mole of oxygen reacts with nitrogen(ii) oxide to produce two moles of nitrogen (iv) oxide.
Therefore, moles of oxygen that reacted with nitrogen(ii) oxide = 4 moles * 1/2 = 2 moles
moles of nitrogen (iv) oxide that reacted will be:
4 moles (unreacted) + 2 * 2 moles = 8 moles.
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(c) Copper reacts with oxygen to produce copper oxide.
63.5 g of copper produces 79.5 g of copper oxide. Mr
Calculate the mass of copper oxide produced when 0.50 g of copper reacts with
oxygen.
Give your answer to 3 significant figures.
The answer would be 0.625 gram.
Copper oxide made from combining Copper and oxygen when copper comes under contact of oxygen it forms copper oxide.
Copper oxide is brownish in color.
Mainly used for nanoparticles or infrared filters and is a weak base.
It is an inorganic compound.
Copper (Cu) + Oxygen (O2) -----------> Copper Oxide (CuO)
If 63.5 gram of Cu produces 79.5 of Copper Oxide
Mass of copper oxide produces when 0.5 Copper react with oxygen = 79.5 g * 0.5 g / 63.5 g
Mass of Copper oxide = 0.625 grams
Hence the mass of Copper Oxide would be 0.625 grams.
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Which of the following would you expect to form a molecular compound?
Potassium and nitrogen
Sodium and bromine
Hydrogen and sulfur
Iron and oxygen
Answer:
Iron and oxygen
Potassium and nitrogen