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
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
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
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- 33. 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_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_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
- II. 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_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_forwardExpress the following numbers in scientific notation.a. 34,500 d. 789b. 2665 e. 75,600c. 0.9640 f. 0.002189arrow_forward
- How many significant digits is 0.02534? A.2 B.6 C.4 D.5arrow_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_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
- Which 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. 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_forwardIt is known that the density of mercury is 13.54 times the density of water. What volume of this mercury in liters would weigh the same as 0.020m^3 of fuel oil, when the fuel oil weighs 9.42kN for every cubic meter? a. 71 b. 1.42 c. 1.7 d. 2.4arrow_forward
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