Hi, I am in 8th grade taking chemistry and need some help and direction on how to start the question below. Your help is really appreaciated.
Question.
A student denteremiend the molar volume of CO2 gas with following data.
Mass of flask, stopper, and air, g (108.812)
Mass of flask, stopper, and CO2, g (180.892)
Volume of flask, L (.144)
Barometric pressure, in. Hg (29.72)
Temperature, C (24)
Density of air at 24.0 C and 29.72 in. Hg, g/ml (1.189 x 10-3)
How do I....
1. calculate the volume, L, of the CO2 sample at STP?
2. calculate the mass of air in the flask?
3. calculate the mass of CO2 in the flask?
4. calculate the molar volume of CO2 at STP?
5. calculate the precent error in answer based on the accepted molar volume of CO2 22.4 L/mol?
2007-04-17
14:58:35
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3 answers
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asked by
Anonymous
in
Chemistry