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Round off or add zeros to each of the following to give two significant figures:
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Chapter 2 Solutions
EBK BASIC CHEMISTRY
- In which of the following pairs do both numbers contain the same number of significant figures?a. 0.068 90 m3 and 6.89 m3b. 0.420 00 kg and 42 kgc. 10 m/s and 100 m/sd. 3.14 L and 3.14 * 10-3 Larrow_forwardHow many significant figures are in each of the following?a. 11.005 g b. 0.000 32 mc. 36 000 000 km d. 1.80 * 104 kge. 0.8250 L f. 30.0 °Carrow_forwardwhat is the result of the following average mathematical operation: 9.50 + 4.10 + 2.801 + 3.1750 4 to the correct number of significant figures? Select one: O a. 4.894 Ob. 5.0 O C 4.9 O d. 5 O e. none of thesearrow_forward
- How many significant figures should the following answer contain? 1.6+24.48-0.08 A. 3 B. 1 C. 2 D 4arrow_forwardDetermine the correct amout of significant figures for each number or operation. Column A 1. 0.002040 2. 15.36 + 2.255 = 17.615 3. 510. 4. 22.2 x 89.01 = 1,976.022 Column B a.2 b.3 c.8 d.4 e.6 f.5 g.1 h.7arrow_forwardThe result of the calculation (1.0161-0.8711) with correct number of significant figure is a. 0.04700 b. 0.1450 c. 0.145 d. 0.0471arrow_forward
- A.Write the number of significant figures in each of the given measurements 65°C 5 mL 10 cm 32.00mL 100oC 1.00cm 0.05mL 10.0mL B.Express the following number in correct scientific notation 1.392 0.000153 2400000 0.75arrow_forwardExpress the following number in scientific notation so that there is only 2 significant figures- 11,451,000 Select one: O a. 1.2 x 107 O b. 1.1 x 107 O c. 1.1 x 106 O d. 1.2 x 108arrow_forwardDecide whether each proposed multiplication or division of measurements is possible. If it is possible, write the result in the last column of the table. proposed multiplication or division Is this possible? result x10 2 140. mm O yes 0.070 m O no 8.0 kg = ? O yes no 4.0 m 3 72. g О yes 2 9.0 g O noarrow_forward
- Calculate all values of X to the correct significant figures.a. X = 0.00076000 /40.3b. X = 80.3 + 12.44 – 5.6c. X = (0.61026)(2.00020)(1400)d. X = (2.98 X 10-2) X 3.777e. X = (5.670 – 3.0098)/2.13arrow_forwardCarry out the following multiplications and divisions, expressing your answer in scientific notation to the correct number of significant figures. a. (3.20 X 107) × (1.720 x 10) b. (1.00 x 10') X (5.00 x 10') × (3.0 × 10-3) 3.0 x 10-5 c. 1.5 x 102 (2.2 x 10°) x (2.3 × 10-6) d. (1.2 x 10-3) x (3.5 x 10-3)arrow_forwardFor each number, underline the zeroes that are significant and draw an x through the zeroes that are not.a. 180,701 mi b. 0.001040 mc. 0.005710 km d. 90,201 marrow_forward
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