Question about molecular weight?

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A 30.6 g sample of gas occupies 22.4 L at STP. What is the molecular weight of this gas? Please include sig figs, and thank you!

2007-10-28 08:25:49 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

thanks guys

2007-10-28 08:39:04 · update #1

The molecular weight is 30.6
One mole of any gas at stp occupies 22.4l, so the mass of one mole must be 30.6g

2007-10-28 08:31:37 · answer #1 · answered by Chemmunicator 5 · 0⤊ 0⤋

The molecular weight is 30.6 g/mol by definition. 22.4 L is the molar volume of any perfect gas at STP.

2007-10-28 15:30:46 · answer #2 · answered by steve_geo1 7 · 0⤊ 0⤋