## Question

###### Ex: Calculate mass percent of Hydrogen and oxygen in 72g " of HzO. (H= 1 g/mol and O= 16 g/mol)Mol Hz0 = mass HzO/molar mass HzO = 72/18= 4 mol

Ex: Calculate mass percent of Hydrogen and oxygen in 72g " of HzO. (H= 1 g/mol and O= 16 g/mol) Mol Hz0 = mass HzO/molar mass HzO = 72/18= 4 mol

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