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Lv 4
To three significant figures, calculate the density of each gas at STP in g L-1:?
Ne
O2
CH4 (methane)
CF4
1 Answer
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- Trevor HLv 76 years agoFavorite Answer
At STP , 1 mol of gas has volume of 22.4L
Molar mass Ne = 20.180g/mol
Mass of 1.0L at STP = 20.180/22.4 = 0.901g
Density at STP = 0.901g/L
Molar mass O2 = 32.0 g/mol
Mass of 1.0L at STP = 32/22.4 = 1.43g
Density at STP = 1.43g/L
Molar mass CH4 = 16.043g/mol
Mass of 1.0L at STP = 16.043/22.4 = 0.716g
Density at STP = 0.716g/L
Molar mass CF4 = 88.003g/mol
Mass of 1.0L at STP = 88.003/22.4 = 3.93g
Density at STP = 3.93g/L
Mass
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