Table of contents

1. Chemical Measurements1h 50m
2. Tools of the Trade1h 17m
3. Experimental Error1h 52m
4 & 5. Statistics, Quality Assurance and Calibration Methods1h 57m
6. Chemical Equilibrium3h 41m
7. Activity and the Systematic Treatment of Equilibrium1h 0m
8. Monoprotic Acid-Base Equilibria1h 53m
9. Polyprotic Acid-Base Equilibria2h 17m
10. Acid-Base Titrations2h 37m
11. EDTA Titrations1h 34m
12. Advanced Topics in Equilibrium1h 16m
13. Fundamentals of Electrochemistry2h 19m
14. Electrodes and Potentiometry41m
15. Redox Titrations1h 14m
16. Electroanalytical Techniques57m
17. Fundamentals of Spectrophotometry50m

3. Experimental Error

Multiplication and Division Operations

Analytical Chemistry

3. Experimental Error

Multiplication and Division Operations

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Multiple Choice

Perform the following calculation for the image below to the right number of sig figs:
[(11.422-0.800) + (8.0 + 1.115)/0.0720] 1.33 x 10^-5

3.64×10^-3

3.639×10^-3

3.6×10^-3

3.60×10^-3

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Verified step by step guidance

First, perform the subtraction inside the first set of parentheses: (11.422 - 0.800). Pay attention to the number of decimal places in each number to determine the correct number of significant figures for the result.

Next, perform the addition inside the second set of parentheses: (8.0 + 1.115). Again, consider the number of decimal places to ensure the result has the correct number of significant figures.

Divide the result of the addition by 0.0720. When dividing, the number of significant figures in the result should be based on the number with the fewest significant figures used in the division.

Add the result from the subtraction to the result from the division. The number of decimal places in the final result should match the number with the fewest decimal places from the numbers being added.

Finally, multiply the entire expression by 1.33 x 10^-5. The number of significant figures in the final answer should be determined by the number with the fewest significant figures in the multiplication.