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Answer to Question #156171 in General Chemistry for Hargun
Question #156171
1 L of a certain gas has a mass of 1.28 g at SATP. Identify the unknown gas.
Expert's answer
mole = volume / molar volume
= 1dm3 / 22.4dm3
= 0.045mol
molar mass = mass / mole
= 1.28 g / 0.045mol
= 28.4 gmol-1
The gas is N2
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