Chemistry Help. Homework Help

Posted on 2014-01-17 14:17:00 in Chemistry by MEAKAYLAA AMORE

I Need help with these two problems:

1:A 2.65g sample of salmon colored powder contains 0.70g Cr, 0.65g S and 1.30 g Oxygen. The molecular mass=292.2g/mol. find the molecular formula



2: Find the molecular formula given the following information.The compund isfound to contain 41.39%C , 3.47%H, AND 55.14%O, and the molecular mass is 116.07 g/mol.





Please help me , this stuff is hard, I Hope you can explain/help well. Thanks!

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