If 7.50 g of the unknown compound contained 0.250 mol of C and 0.500 mol of H, how many moles of oxygen, O, were in the sample?
An unknown compound contains only carbon, hydrogen, and oxygen (CxHyOz). Combustion of 7.50 g of this compound produced 11.0 g of carbon dioxide and 4.50 g of water.
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