A sample of an unknown gas effuses in 122 min an equal
A sample of an unknown gas effuses in 12.2 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.82 min. What is the molar mass of the unknown gas?
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heather and jerry are standing on a bridge 50 m above a riverheather throws a rock straight down with a speed of 20 ms
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a sample of an unknown gas effuses in 122 min an equal volume of h2 in the same apparatus at the same temperature and
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