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

1 Answer
Meave60
Oct 9, 2014

In order to calculate the volume in liters that contains #"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"# at STP.
molar mass of ethane = #"C"_"2""H"_6"#, = #"30.07g/mol"#:
#"[##"("2"# x #"12.011g/mol")# + #("6"# x #"1.008g/mol")##"]"#

Solution:
#"50.32g"# #"C"_"2""H"_6"# x #"22.414L"/"1mol"# x #"1 mol"/"30.07g"# = #"37.51"#L

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

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