Molar mass chemistry....?

Question

If 44g of a gas is found to have a volume of 24.5 L under a pressure of 50.66 kPa at 298 K, what is the molar mass of the gas?

I have three others like this and i dont know how to do them, please help me out here.

Answer 1

Use ideal gas law PV = nRT

n = moles , but that is mass / molecular mass

so PV = m/MM RT

Make sure you use the correct "R" for KPa and liters. I think it is 82.3, but please verify

Put in all of your data and solve for MM molecular mass