Step 1: 40.0% C, 6.7% H, and 53.3% O by mass. Recall that mass percent is given by:
Assuming we have 100 g of the compound, this means we have 40.0 g C, 6.7 g H, and 53.3 g O.
Give the empirical formula of the following compound if a sample contains 40.0% C, 6.7% H, and 53.3% O by mass.
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