What is the molar mass of 31.3 g of gas exerting a pressure of 5.71 atm on the walls of a 3.04 L container at 297 K?
2 Answers
The molar mass of the gas is
Explanation:
Use the ideal gas law
Notice that number of moles is
Plug it into the ideal gas law for
Rearrange and isolate x.
Plug everything in (excluding units)
(If you cancel out all the units, you will find that you will get
The molar mass of the gas is
Explanation:
Use the ideal gas law equation to determine moles. Then divide the given mass by the moles to get molar mass.
where:
Organize the data:
Known
Unknown
Calculate moles
Rearrange the ideal gas law equation to isolate
Determine molar mass
Divide the given mass by the calculated moles.