Posted by john on Tuesday, February 12, 2008 at 3:09pm.
Convert volume of H2O2 (the 1/2 cup) to grams H2O2 using density.
Convert grams H2O2 to mols using mols = g/molar mass.
Convert mols H2O2 to mols H2O using the coefficients in the balanced equation.
Convert mols H2O to grams using mols x molar mass = grams.
Follow the same procedure for determining the grams of O2 in the product.
Post your work if get stuck.
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