# chemistry

How many grams of H2O (Mm = 18.0 g/mol) are produced in the combustion of 70.0 g of C4H10 (Mm = 58.1 g/mol)?
2C4H10 + 13O2 8CO2 + 10H2O

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1. mols C4H10 = grams/molar mass
Using the coefficients in the balanced equation, convert mols C4H10 to mols H2O.
Now convert mols H2O to grams. g = mols H2O x molar mass H2O.

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