Topical Questions
These questions are keyed to the major topics in the chapter. Usually a question that is answered at the back of this book is paired with a similar one that is not.
Propionic acid, an organic acid, contains only C, H, and O. If 0.236 g of the acid burns completely in O2 and gives 0.421 g CO2 and 0.172 g H2O, what is the empirical formula of the acid?
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