Introductory Chemistry For Today
8th Edition
ISBN: 9781285644561
Author: Seager
Publisher: Cengage
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Write the following numbers in scientific notation.a. 0.0045834 mm c. 438,904 sb. 0.03054 g d. 7,004,300,000 g
Multiply 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.5.068
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 digits
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- Calculate 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_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_forwardII. Write the following number in scientific notation: a. 0.000 543 b. 0.000 000 870 c. 50.7 x 105 d. 63.8 x 10-3 e. 0.0000234 f. 560 000 000 000.0arrow_forward
- Conversions: 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_forwardExpress 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_forwardConversions: 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_forward
- Express the following numbers in scientific notation.a. 34,500 d. 789b. 2665 e. 75,600c. 0.9640 f. 0.002189arrow_forwardWhich of the following numbers conforms to the scientific notation conventions? A. 0.123 x 109 B. -1.23 x 1012 C. 1.23 x 102.1 D. 12.3 x 106arrow_forward2. Significant Figures Record the number of significant figures in each of the following numbers. a. 6.03 b. 0.0603 c. 650.3 d. 650 e. 2.670 x 103 f. 0.0100arrow_forward
- How many significant digits is 0.02534? A.2 B.6 C.4 D.5arrow_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_forwardHow many significant figures are contained in each of the following numbers?a. 7.26 c. 700.2 e. 0.0720b. 726 d. 7.0 f. 720arrow_forward
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