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number with the lewest sighilicant igures. ecognized to be uncertain. We call nificant figures. Often, these in calculations. When we use a Addition and subtraction ulator does not automatically ant figures, so we have to do so e some basic rules for handling n calculations as shown in the When adding or subtracting, the final answer is rounded to the same number of digits to the right of the decimal point as the measured number with the fewest digits to the right of the decimal point. This item does cover measured values o the right. without a decimal point, which may involve interpreting values with an ambiguous number of significant figures. t Figure in Calculations Part A ON DIVISION х103 123.1/ 23 = 5.4 Compute 3.5 x 4.48697. Round the answer appropriately. s.f. 4 s.f. 2 s.f. 2 s.f. Express your answer numerically using the proper number of significant figures. SUBSTRACTION • View Available Hint(s) 123.1 - 23 = 1.00 x 101 16 (also 100.) 3.5 x 4.48697 = d.p. 1 d.p. O d.p. O d.p. stands for "significant figures" igits to the right of the decimal point"

number with the lewest sighilicant igures. ecognized to be uncertain. We call nificant figures. Often, these in calculations. When we use a Addition and subtraction ulator does not automatically ant figures, so we have to do so e some basic rules for handling n calculations as shown in the When adding or subtracting, the final answer is rounded to the same number of digits to the right of the decimal point as the measured number with the fewest digits to the right of the decimal point. This item does cover measured values o the right. without a decimal point, which may involve interpreting values with an ambiguous number of significant figures. t Figure in Calculations Part A ON DIVISION х103 123.1/ 23 = 5.4 Compute 3.5 x 4.48697. Round the answer appropriately. s.f. 4 s.f. 2 s.f. 2 s.f. Express your answer numerically using the proper number of significant figures. SUBSTRACTION • View Available Hint(s) 123.1 - 23 = 1.00 x 101 16 (also 100.) 3.5 x 4.48697 = d.p. 1 d.p. O d.p. O d.p. stands for "significant figures" igits to the right of the decimal point"

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Please answer question 10 parts A, B, and C

Learning Goal: To learn how to round an answer to the correct number of significant figures. Multiplication and division When we report a measurement in science, we are careful to report only digits known with certainty, plus a final digit that is recognized to be uncertain. We call this set of digits significant figures. Often, these numbers are used in calculations. When we use a When multiplying or dividing, the final answer is rounded to the same number of significant figures as the measured number with the fewest significant figures. calculator, the calculator does not automatically account for significant figures, so we have to do so ourselves. There are some basic rules for handling significant figures in calculations as shown in the table and outlined to the right. Addition and subtraction When adding or subtracting, the final answer is rounded to the same number of digits to the right of the decimal point as the measured number with the fewest digits to the right of the decimal point. This item does not cover measured values without a decimal point, which may involve interpreting values with an ambiguous number of significant figures. Significant Figure in Calculations Part A MULTIPLICATION DIVISION 123.1 × 23 = 2.8 ×103 123.1 / 23 = 5.4 4 s.f. 2 s.f. 2 s.f. 4 s.f. 2 s.f. 2 s.f. Compute 3.5 x 4.48697. Round the answer appropriately. Express your answer numerically using the proper number of significant figures. ADDITION SUBSTRACTION • View Available Hint(s) 123.1 - 23 = 1.00 x 101 123.1 + 23 = 146 (also 100.) 3.5 x 4.48697 = 1 d.p. O d.p. 0 d.p. 1 d.p. O d.p. O d.p. note: s.f. stands for "significant figures" d.p. stands for "digits to the right of the decimal point"
Transcribed Image Text:Learning Goal: To learn how to round an answer to the correct number of significant figures. Multiplication and division When we report a measurement in science, we are careful to report only digits known with certainty, plus a final digit that is recognized to be uncertain. We call this set of digits significant figures. Often, these numbers are used in calculations. When we use a When multiplying or dividing, the final answer is rounded to the same number of significant figures as the measured number with the fewest significant figures. calculator, the calculator does not automatically account for significant figures, so we have to do so ourselves. There are some basic rules for handling significant figures in calculations as shown in the table and outlined to the right. Addition and subtraction When adding or subtracting, the final answer is rounded to the same number of digits to the right of the decimal point as the measured number with the fewest digits to the right of the decimal point. This item does not cover measured values without a decimal point, which may involve interpreting values with an ambiguous number of significant figures. Significant Figure in Calculations Part A MULTIPLICATION DIVISION 123.1 × 23 = 2.8 ×103 123.1 / 23 = 5.4 4 s.f. 2 s.f. 2 s.f. 4 s.f. 2 s.f. 2 s.f. Compute 3.5 x 4.48697. Round the answer appropriately. Express your answer numerically using the proper number of significant figures. ADDITION SUBSTRACTION • View Available Hint(s) 123.1 - 23 = 1.00 x 101 123.1 + 23 = 146 (also 100.) 3.5 x 4.48697 = 1 d.p. O d.p. 0 d.p. 1 d.p. O d.p. O d.p. note: s.f. stands for "significant figures" d.p. stands for "digits to the right of the decimal point"
Part B Compute 1240.64/12.5. Round the answer appropriately. Express your answer numerically using the proper number of significant figures. • View Available Hint(s) 1240.64 12.5 Part C Compute 9.3456 + 2140.56. Round the answer appropriately. Express your answer numerically using the proper number of significant figures. • View Available Hint(s) 9.3456 + 2140.56 =
Transcribed Image Text:Part B Compute 1240.64/12.5. Round the answer appropriately. Express your answer numerically using the proper number of significant figures. • View Available Hint(s) 1240.64 12.5 Part C Compute 9.3456 + 2140.56. Round the answer appropriately. Express your answer numerically using the proper number of significant figures. • View Available Hint(s) 9.3456 + 2140.56 =
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