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Quiz: Interpret formulas
1. The number of hydrogen atoms in 8 molecules of methanol, CH3OH, is
none of these8244332
2. The compound SF4 is a corrosive gas that attacks glass. Seven molecules of SF4 contain a total of how many atoms?
40753528
3. In four molecules of sulfuric acid, H2SO4, there are:
2 H atoms; 1 S atom; 4 O atoms.4 H atoms; 4 S atoms; 4 O atoms.
8 H atoms; 4 S atoms; 16 O atoms.4 atoms total.
16 atoms total
4. The deadly nerve gas tabun, (CH3)2NP(O)(C2H5O)(CN), was manufactured by the Germans in World War II but never used. A sample containing traces of tabun is found to contain 2.4 x 1019 nitrogen atoms. The maximum number of tabun molecules that the sample could contain is:
1.2 x 10194.8 x 10190.9 x 10192.4 x 1019none of these
5. Phenylmercuric borate, (C6H5Hg)2HBO3, was once used as a mildewproofing agent. A wood sample sprayed with 4.8 x 1018 molecules of phenylmercuric borate could contain how many mercury atoms?
none of these29.6 x 10182.4 x 10184.8 x 1018
6. The banned insecticide DDT, (ClC6H4)2CHCCl3, contains how many chlorine atoms per molecule?
1945314
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General Chemistry Online! Quiz: Interpret formulas

Copyright © 1997-2005 by Fred Senese
Comments & questions to fsenese@frostburg.edu
Last Revised 06/11/07.URL: http://antoine.frostburg.edu/chem/senese/101/compounds/interpret-formulas-quiz.shtml