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Quiz: Interpret formulas
1. The compound SF6 is a colorless, odorless, extremely heavy gas, about 5 times as dense as air. A sample of 100 molecules of SF6 contains
1 S and 6 F100 S and 600 F 600 S and 600 F6 S and 6 F
2. In four molecules of sulfuric acid, H2SO4, there are:
4 H atoms; 4 S atoms; 4 O atoms.4 atoms total.
2 H atoms; 1 S atom; 4 O atoms.8 H atoms; 4 S atoms; 16 O atoms.
16 atoms total
3. 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 1062 x 1051 x 1052 x 106
4. Stearic acid, CH3(CH2)16CO2H, is the most common fatty acid occurring in animal and vegetable fats. How many hydrogen atoms does one molecule of stearic acid contain?
6323635none of these
5. How many atoms are in two molecules of blood sugar (C6H12O6)?
none of these2464812
6. 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?
21none of these185724
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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