What is the volume in liters that contains 50.32 g of C2H6 (ethane) gas?

1 Answer
Oct 9, 2014

In order to calculate the volume in liters that contains "50.32g"50.32g of ethane gas, you must first identify the molar volume of a gas, and the molar mass of ethane. Then you will use dimensional analysis to

Known/Given:
molar volume of any gas = "22.414L/mol"22.414L/mol at STP.
molar mass of ethane = "C"_"2""H"_6"C2H6, = "30.07g/mol"30.07g/mol:
"[["("2"(2 x "12.011g/mol")12.011g/mol) + ("6"(6 x "1.008g/mol")1.008g/mol)"]"]

Solution:
"50.32g"50.32g "C"_"2""H"_6"C2H6 x "22.414L"/"1mol"22.414L1mol x "1 mol"/"30.07g"1 mol30.07g = "37.51"37.51L

At STP, the volume in liters occupied by "50.32g"50.32g ethane gas is "37.51L"37.51L.