1. Summarize the steps performed when using an analytical balance. 2. How could you distinguish a problem with a balance from a user technique issue using the collected statistics? 3. Matt weighed a crucible three times and calculated a mean mass of 12.3453 g with a standard deviation of 0.0002 g, while Sunil's result for the same crucible was 12.3448 g with a standard deviation of 0.0003 g. Do their results agree? Why or why not? 4. Next week, you will use the dried NaCl to create a solution. Why is it beneficial to dry any hydroscopic solid prior to weighing out the solid to make a solution? 5. If you wanted to accurately prepare 500 mL of a 1.500 M solution of NaCl, how would you do this? Include the mass of NaCl needed as well as all tools used in preparing this solution.

1. Summarize the steps performed when using an analytical balance. 2. How could you distinguish a problem with a balance from a user technique issue using the collected statistics? 3. Matt weighed a crucible three times and calculated a mean mass of 12.3453 g with a standard deviation of 0.0002 g, while Sunil's result for the same crucible was 12.3448 g with a standard deviation of 0.0003 g. Do their results agree? Why or why not? 4. Next week, you will use the dried NaCl to create a solution. Why is it beneficial to dry any hydroscopic solid prior to weighing out the solid to make a solution? 5. If you wanted to accurately prepare 500 mL of a 1.500 M solution of NaCl, how would you do this? Include the mass of NaCl needed as well as all tools used in preparing this solution.

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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