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a sample of gas has a density of 1.96g/l at STP.Determine its molar mass.
题目详情
a sample of gas has a density of 1.96g/l at STP.Determine its molar mass.
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答案和解析
1.96克密度/升,STP下1mol气体的体积为22.4L
所以1mol该气体质量为：1.96g/L×22.4L=43.904g≈44g
所以该气体摩尔质量为44g/mol
所以1mol该气体质量为：1.96g/L×22.4L=43.904g≈44g
所以该气体摩尔质量为44g/mol
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