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1. How many significant figures do the following values have? a) 0.045 g b) 43.050 mL 2. Record the length of the lines below to the correct number of significant f a) 1 2 3 cm 1 b) cm 2 ןויוןוו 3

1. How many significant figures do the following values have? a) 0.045 g b) 43.050 mL 2. Record the length of the lines below to the correct number of significant f a) 1 2 3 cm 1 b) cm 2 ןויוןוו 3

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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**Measurement and Significant Figures: Educational Content** **1. Counting Significant Figures** Given values and their significant figures: - **0.045 g**: This value has 2 significant figures (4 and 5). - **43.050 mL**: This value has 5 significant figures (4, 3, 0, 5, and 0). **2. Measuring Line Lengths** Record the length of the lines below to the correct number of significant figures: **a)** - Diagram: A ruler is provided, marking centimeters (cm) from 1 to 3. - Measurement: The line approximately measures 2.3 cm. **b)** - Diagram: Another ruler provided, marking centimeters (cm) from 1 to 3 with finer subdivisions. - Measurement: The line approximately measures 2.35 cm. **Explanation of Diagrams:** - **Diagram a)** shows a ruler marked from 1 to 3 cm with major subdivisions for each whole number. - **Diagram b)** shows a ruler marked from 1 to 3 cm with finer, smaller subdivisions for each half and tenth of a centimeter. By reading the rulers on these diagrams, you can determine the lengths of the lines with an appropriate number of significant figures based on the precision of the measuring tool shown.
Transcribed Image Text:**Measurement and Significant Figures: Educational Content** **1. Counting Significant Figures** Given values and their significant figures: - **0.045 g**: This value has 2 significant figures (4 and 5). - **43.050 mL**: This value has 5 significant figures (4, 3, 0, 5, and 0). **2. Measuring Line Lengths** Record the length of the lines below to the correct number of significant figures: **a)** - Diagram: A ruler is provided, marking centimeters (cm) from 1 to 3. - Measurement: The line approximately measures 2.3 cm. **b)** - Diagram: Another ruler provided, marking centimeters (cm) from 1 to 3 with finer subdivisions. - Measurement: The line approximately measures 2.35 cm. **Explanation of Diagrams:** - **Diagram a)** shows a ruler marked from 1 to 3 cm with major subdivisions for each whole number. - **Diagram b)** shows a ruler marked from 1 to 3 cm with finer, smaller subdivisions for each half and tenth of a centimeter. By reading the rulers on these diagrams, you can determine the lengths of the lines with an appropriate number of significant figures based on the precision of the measuring tool shown.
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