Introductory Chemistry For Today
8th Edition
ISBN: 9781285644561
Author: Seager
Publisher: Cengage
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determine the number of significant digits in each of the following.
a.234 b.204.6 c.0.00245 d.10.0026 e.1100 f.1100.0
round the following numbers to 3 significant digits
a.10.267 b.0.006296 c.2.0097. d.66.35 e.14.45782 f. 2.469x10^3
Place the following numbers in scientific notation rounded to 3 significant digits.
a.246.5 b. 0.00000000000009309 c.1087 d.60233400000000000000000000000000
Write the following numbers in scientific notation.a. 0.0045834 mm c. 438,904 sb. 0.03054 g d. 7,004,300,000 g
Express the following numbers in scientific notation.a. 34,500 d. 789b. 2665 e. 75,600c. 0.9640 f. 0.002189
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- Express each number in scientific notation.a. 700 c. 4,500,000 e. 0.0054 g. 0.000000076b. 38,000 d. 685,000,000,000 f. 0.00000687 h. 0.0000000008arrow_forwardMultiply 0.25 by 20.40 and yor report your answer to the correct number of significant digits. A.5.1 B.5.07 C.5 D.5.068arrow_forwardHow many significant digits is 0.02534? A.2 B.6 C.4 D.5arrow_forward
- 5. Determine the number of significant figures: а. 1000 b. 780. c. 0.00102 d. 8120arrow_forward2. Convert 1.7014 pound to kilograms. Select one: a. 1.7014*2.21 b. 1.7014-2.21 c. 1.7014/2.21 d. 1.7014+2.21arrow_forwardwrite each in standard scientific notation a. 1/1033 b. 1/105 c. 1/10-7 d. 1/0.0002 e. 1/3,093,000 f. 1/10-4 g.1/109 h. 1/0.000015arrow_forward
- Round off each of the following numbers to the indicated number of significant digits, and write the answer in standard scientific notation. a. 0.0034159 to three digits b. 103.351x 102 to four digits c. 17.9915 to five digits d. 3.365 x 105 to three digitsarrow_forward33. Round off each of the following numbers to the indicated num- ber of significant digits and write the answer in standard scien- tific notation. a. 0.00034159 to three digits b. 103.351 × 10² to four digits c. 17.9915 to five digits d. 3.365 10° to three digits 34. Use exponential notation to express the number 385,500 to a. one significant figure. b. two significant figures. c. three significant figures. d. five significant figures. 14 of 22arrow_forwardConversions: include the correct number of significant digits a. 1.2 g to ug (micrograms) b. 10.0 cm to in c. 78.9 mg to garrow_forward
- Conversions: follow the same format in the image provided and answers must be in scientific notation. a. 9.90 cm to pm b. 7.50 cm to kmarrow_forwardThe number 0.00754605000 whenconverted to standard exponential (or scientific) notation becomes ____ a. 7.55 x 103 b. 7.54605 x 10-3 c. 7.54605000 x 10-3 d. 7.54605000 x 103arrow_forwardCalculate to the correct number of significant figures.a. 0.004 + 0.09879 b. 1239.3 + 9.73 + 3.42c. 2.4 - 1.777 d. 532 + 7.3 - 48.523arrow_forward
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