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.
Calculate the molar mass of each of these compounds and the mass percent of each element.
(a) MgCO3, magnesium carbonate
(b) C6H5OH, phenol, an organic compound used in some cleaners
(c) C2H3O5N, peroxyacetyl nitrate, an objectionable compound in photochemical smog
(d) C4H10O3NPS, acephate, an insecticide
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