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# Molecules and Ideal Gas Law

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1. A cylinder contains a mixture of hydrogen and chlorine molecules. Compare without doing any calculations:

a) the relative mass of the molecules
b) the temperature of each gas
c) the average kinetic energy of the molecules
d) the average speed of the molecules.

2. Find the number of atoms in
a) 52.5g of calcium metal
b) 1.5 mol of carbon
c) 1.5 mol of carbon dioxide.

3. Find the volume of a gas at -30oC and 0.75 atm if it occupies a volume of 255L at 40.0oC and 1.25 atm.

https://brainmass.com/chemistry/physical-chemistry/molecules-ideal-gas-law-atoms-118305

#### Solution Preview

See attached file.
1. A cylinder contains a mixture of hydrogen and chlorine molecules. Compare without doing any calculations:

a) the relative mass of the molecules

since atomic mass of chlorine is more than Hydrogen, therefore chlorine has higher relative mass.

b) the temperature of each gas

since, relative atomic mass is directly related to temperature, therefore, chlorine will have more temperature.

c) the ...

#### Solution Summary

The response is comprised of detailed solutions to gas law related questions.

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