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lecture notes5 - Solutions to Chem 321 Work Group Set 2...

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Solutions to Chem 321 Work Group Set 2 Questions Analysis, Measurements and Tools Which measurement, 36.49 mL or 4.67 g, has the larger relative error? Explain. The implied uncertainty for these measurements is: 36.49 ± 0.01 mL and 4.67 ± 0.01 g Therefore, the relative errors are: and 4.67 g has the larger relative error. What is the ppth relative error for a 20-mL glass transfer pipet that has a tolerance of ± 0.03 mL? You are given a stock solution containing 50.0 ppm Mg 2+ (aq). Describe how you would prepare a 0.75 ppm Mg 2+ (aq) solution using only a 5.00-mL glass transfer pipet, a 50-mL beaker and a 100-mL volumetric flask. You also have a large
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