Chemistry: What's Hot Now: Significant Figures and Scientific Notation Test Questions

Chemistry: What's Hot Now These articles that had the largest increase in popularity over the last week

Significant Figures and Scientific Notation Test Questions Jul 22nd 2011, 10:02 This is a collection of ten chemistry test questions with answers dealing with significant figures and scientific notation. The answers are at the bottom of the page. 1. How many significant figures are in the following values? a. 4.02 x 10-9 b. 0.008320 c. 6 x 105 d. 100.0 2. How many significant figures are in the following values? a. 1200.0 b. 8.00 c. 22.76 x 10-3 d. 731.2204 3. Which value has more significant figures? 2.63 x 10-6 or 0.0000026 4. Express 4,610,000 in scientific notation. a. with 1 significant figure b. with 2 significant figures c. with 3 significant figures d. with 5 significant figures 5. Express 0.0003711 in scientific notation. a. with 1 significant figure b. with 2 significant figures c. with 3 significant figures d. with 4 significant figures 6. Perform the calculation with the correct number of significant digits. 22.81 + 2.2457 7. Perform the calculation with the correct number of significant digits. 815.991 x 324.6 8. Perform the calculation with the correct number of significant digits. 3.2215 + 1.67 + 2.3 9. Perform the calculation with the correct number of significant digits. 8.442 - 8.429 10. Perform the calculation with the correct number of significant digits. 27/3.45 11. Answers 1. a. 3   b. 4   c. 1   d. 4 2. a. 5   b. 3   c. 4   d. 7 3. 2.63 x 10-6 4. a. 5 x 106   b. 4.5 x 106   c. 4.61 x 106   d. 4.6100 x 106 5. a. 4 x 10-4   b. 3.7 x 10-4   c. 3.71 x 10-4   d. 3.711 x 10-4 6. 24.06 7. 2.649 x 105 8. 7.2 9. 0.013 10. 7.8

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