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Quiz: Interpret formulas
1. Realgar, As2S2, is a soft red-orange mineral that was once used in colored fireworks. An explosion that releases a million atoms of arsenic could contain how many molecules of realgar?
5 x 1051 x 1052 x 1061 x 1062 x 105
2. Stearin, C3H5(C18H35O2)3, is a constituent of most animal fats and is used for making soap, candles, and candies. How many carbon atoms are in one molecule of stearin?
211857none of these24
3. The number of carbon atoms in 5 molecules of oxalic acid, H2C2O4, is
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:
2.4 x 1019none of these1.2 x 10194.8 x 10190.9 x 1019
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?
4.8 x 10189.6 x 101822.4 x 1018none of these
6. How many atoms are in two molecules of blood sugar (C6H12O6)?
62412none of these48
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General Chemistry Online! Quiz: Interpret formulas

Copyright © 1997-2005 by Fred Senese
Comments & questions to fsenese@frostburg.edu
Last Revised 12/14/21.URL: http://antoine.frostburg.edu/chem/senese/101/compounds/interpret-formulas-quiz.shtml