Question

The density of an unknown gas is found to be 2.82 g/L at standard temperature and pressure (STP). What is the molar mass of this gas?

93 g/mol

48 g/mol

79 g/mol

63 g/mol

Answer 1

@asib1214

Answer 2

i know that this is the formula PV = nRT but i don't what do after

Answer 3

@JoannaBlackwelder

Answer 4

well you know that 1 mol of any gas contains 22.4L at STP so if you have the density, you can find the mass of the gas like this....