CBSE Class 11-science Answered
A 30.0 g gas sample occupies 11.2 L at STP. Find the molecular weight of this gas.
Asked by Topperlearning User | 20 Apr, 2015, 11:32: AM
Expert Answer
One mole of a gas occupies a volume of 22.4 L at STP. This is a standard fact.
11.2 L at STP is one-half molar volume; therefore there is 0.5 mol of gas present.
Thus, the molecular weight of the gas is 80.0 g mol-1.
Answered by | 20 Apr, 2015, 01:32: PM
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