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Unformatted text preview: Answer 3. In your own words, describe when and how weighing by difference would be employed in the lab. (2 pts) Answer 4. What is the correct volume measurement illustrated in the pictures below? Explain. (4 pts) a. 36 mL c. 36.5 mL b. 36.0 mL d. 36.50 mL a. 12.7 mL c. 13.3 mL b. 12.70 mL d. 13.30 mL Answer Answer 5. The calcium content of a mineral was analyzed five times and the data are presented below. Using the Q test, decide if any piece of data should be omitted. Also calculate the mean and standard deviation for all data determined to be acceptable. (6 pts) Trial 1 2 3 4 5 % Ca 27.1 28.2 27.3 27.1 27.4 Answer A.) B.)...
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This note was uploaded on 06/10/2010 for the course CHEM 101L taught by Professor Austell during the Spring '08 term at UNC.
- Spring '08