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[sungjin6458]

Question: A 1.20-g sample of water is injected into an evacuated 5.99-L flask at 65 degreees Celcius. What percentage of the water will be vapor when the system reaches equilibrium? Assume ideal behavior of water vapor and taht the volume of liquid water is negligible. The vapor pressure of water at 65 degrees celcius is 187.5 mmHg.

Answer: I dont get this problem at alll!


Thnx in advance :lol: :lol: :lol: :lol:

 

[stapel]

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[Gene]

Solve n=PV/RT
P = 187.5 mm
V=5.99 L
T = 65° C

You'll have to get R out of your book and probably change P, V and T to the units that R requires.

Change 1.2 grams to mols.
n*100/that should be your answer.
This isn't a math problem as much as a chemistry problem.
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Gene