Homework Help: chemistry

Posted by Anonymous on Thursday, September 30, 2010 at 12:01pm.

two-thirds of the atoms that make up H2S are hydrogen. What percentage of the weight of hydrogen sulfide is the weight of the two hydrogens?

chemistry - DrBob222, Thursday, September 30, 2010 at 1:46pm
(2*atomic mass H/molar mass H2S)*100 = ??

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