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Quiz: Significant Figures

1. The number of significant digits in 4900 is
at most 2exactly 4at least 2at least 4
2. Correctly rounded, the product 2.000 cm × 20.0 cm is
4.000 x 101cm24.00 x 101 cm24 x 101 cm24.0 x 101 cm2
3. Correctly rounded, 20.0030 - 0.491 g =
19.5 g 19.5120 g20 g19.512 g19.51 g
4. Correctly rounded, the result (23.1000 g - 22.0000 g) / (25.10 mL - 25.00 mL) is
11.0 g/mL11.000 g/mL11.00 g/mL11 g/mL
5. A mile is defined as 5280 feet. How many significant figures does this number have?
The number is exact.043
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General Chemistry Online! Quiz: Significant figures

Copyright © 1997-2005 by Fred Senese
Comments & questions to fsenese@frostburg.edu
Last Revised 02/23/18.URL: http://antoine.frostburg.edu/chem/senese/101/measurement/sigfig-quiz.shtml