Chemistry: Structure and Properties
1st Edition
ISBN: 9780321834683
Author: Nivaldo J. Tro
Publisher: PEARSON
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Textbook Question
Chapter A2, Problem 8E
Round each number to three significant figures.
a. 79,845.82
b. 1.548937 × 107
c. 2.3499999995
d. 0.000045389
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Students have asked these similar questions
Round each number to three significant figures.
b. 1.548937 x 10
a. 79,845.82
c. 2.3499999995
d. 0.000045389
Determine the number of significant figures in each measurement.
a. 0.049450 s c. 3.1587 × 1 0 -4 gb. 0.000482 mL d. 0.0084 mL
Count the significant figures of each quantity.
a. 579.420
b. 3.14159265
c. 2 × 1011
d. 50.1
e. 3800
Chapter A2 Solutions
Chemistry: Structure and Properties
Ch. A2 - For each number, underline the zeroes that are...Ch. A2 - Prob. 2ECh. A2 - Prob. 3ECh. A2 - How many significant figures are in each number?...Ch. A2 - Prob. 5ECh. A2 - Indicate the number of significant figures in each...Ch. A2 - Round each number to four significant figures. a....Ch. A2 - Round each number to three significant figures. a....Ch. A2 - Prob. 9ECh. A2 - Prob. 10E
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- Determine the number of significant figures in each measurement. a. 508.0 L c. 1.0200 × 1 0 5 kgb. 820,400.0 L d. 807,000 kgarrow_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_forwardRound each number to four significant figures.a. 431,801 kg d. 0.004384010 cmb. 10,235.0 mg e. 0.00078100 mLc. 1.0348 m f. 0.0098641 cgarrow_forward
- Determine the number of significant figures in each measurement.a. 340,438 g e. 1.040 sb. 87,000 ms f. 0.0483 mc. 4080 kg g. 0.2080 mLd. 961,083,110 m h. 0.0000481 garrow_forward1.-How many significant figures are in the following numbers? 0.70620 a. b. 5010 4548 C. d. 0.00045050 7.210 x 105 e. 2.-Round up the following numbers to the designated significant figures to 2 significant figure 32445.34 to 1 significant figure 85518 to 4 significant figures 526544 3.-Express each answer in scientific notation and with the proper number of significant figures a. 1,027611 +363.06 = b. 217 903 118.7 2-35.5 C. d. 28 x 47.3= e. (5.2 x 10) x (3.33 x 102) 4.-Convert the following numbers to scientific notation, use prefixes and use only 2 significant figures Example 52,000,000 g 52 X 10 g 52Mg 52 megagrams 0.0000003 g a. b 26198151 L 1546 m C. 5.-What does the slope of each line on the graph tell you? 6.-Which runner finish the race first red, blue or green? TIME (seconds) b) 4x+2-2(x+6) 7.-Solve for X in the following equations: a) 25 554x-4.245 8.-Classify each statement as a law, a theory, an experiment, a hypothesis, an observation Birds evolved from dinosaurs. 1. Hot…arrow_forward55. Round the number on the left to the number of significant figures indicated by the example in the first row. (Use scientific notation as needed to avoid ambiguity.) Rounded to Rounded to Rounded to 4 Significant 2 Significant 1 Significant Figures Number Figures Figure 1.45815 1.458 1.5 8.32466 84.57225 132.5512arrow_forward
- Round each figure to three significant figures.a. 0.003210 g d. 25.38 Lb. 3.8754 kg e. 0.08763 cmc. 219,034 m f. 0.003109 mgarrow_forwardDo the following calculation of measured masses from an experiment: 5.656 g + 168.435 g + 75.657 g Calculate the total mass (g) to the correct number of decimal places. Calculate the answer and round to significant figures. Group of answer choices a. 2.49748 x 10^1 b. 250. c. 249.748 d. 249.8 e. 249.75arrow_forwardConversions: include the correct number of significant digits and follow the format included in the image. a. 0.20 m to mm b. 2.23 ks to s c. 78.9 mg to garrow_forward
- 56. Round the number on the left to the number of significant figures indicated by the example in the first row. (Use scientific notation as needed to avoid ambiguity.) Rounded to 4 Rounded to 2 Rounded to 1 Significant Figures Significant Figures Significant Figure Number 9 × 101 94.52118 94.52 95 105.4545 0.455981 0.009999991arrow_forwardDetermine the number of significant figures. 1. 3.4 / 0.025356 + 236.00 - 76.357 2. 5.6786 + 246.346133 + 0.3257413 - 0.9246435arrow_forwardWrite the following numbers in ordinary notation.a. 8.348 × 1 0 6 km c. 7.6352 × 1 0 -3 kgb. 3.402 × 1 0 3 g d. 3.02 × 1 0 -5 sarrow_forward
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