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1 November, 10:22

What is the mass of 40.34 x 10^23 H2 molecules at stp?

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  1. 1 November, 11:11
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    Every mol=6.22*10^23 molecules and every mol of H2 Is 2 gram

    40.34*10^23/6.22*10^23=6.48 or 6.5

    6.5*2=13 gram
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