Pre-Lab Qs - Experiment 2

Pre-Lab Qs - Experiment 2 - a. b. c....

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Name:______________________________ Section:_________ 1 Experiment 2 – Physical Properties Pre-lab Questions Read Experiment 2, pages 9-13, in your laboratory manual. After reading the experiment, answer the questions below. Questions are due at the beginning of your laboratory period. 1. Which two properties are you going to use to determine the identity of a solid unknown in this experiment? (1 pt) a. b. 2. Among the two experimental parameters you are using to identify the unknown solid, which measurement do you consider to be more reliable? Justify your answer. (2 pts) 3. Which three properties are you going to use to determine the identity of a liquid unknown in this experiment? (1.5 pts)
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Unformatted text preview: a. b. c. Name:______________________________ Section:_________ 2 4. Among the three experimental parameters you are using to identify the unknown liquid, which measurement(s) do you consider to be more reliable? Justify your answer. (2 pts) 5. In your own words, explain how you can determine whether an unknown liquid is soluble in a pure solvent. (1 pt) 6. If a solid has a melting point of 80 o C, what state (solid, liquid or gas) will it be at room temperature (~ 23 o C)? At 75 o C? At 85 o C? (1.5 pts) Room temperature: 75 o C: 85 o C: 7. If a substance has a melting point of 10 o C and a boiling point of 60 o C, will it be a solid, liquid or gas at room temperature? (1 pt)...
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This note was uploaded on 10/11/2009 for the course CHE 102 taught by Professor Maggie during the Fall '09 term at Wisc Whitewater.

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Pre-Lab Qs - Experiment 2 - a. b. c....

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