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May 23, 2015

Homework Help: chemistry

Posted by Patty on Monday, June 14, 2010 at 12:42pm.

1. Mass of flask, boiling chips, foil cap and unknown after cooling reaction 83.350g

2. Mass of flask, boiling chips and foil cap. 82.657

3. water bath temperature C 95.0 C
4. Barometric pressure in Hg 30.09
5. Accepted molar mass of unknown 86.2g/moles
6. Volume of flask 270 mls

Problem

1. Calculate mass of unknown.
2. Express water bath temperature in Kelvin
3. Express barometric pressure in standard atmospheric pressure
4. Express volume of flask in cm3
5. Calculate density of vaporized unknown.

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