So we were given this question forever ago in my class, and he said we would go over it on a later day in class, but whether he forgot or I wasn't there I never saw the answer to it. And now, school is over for the summer so I can't ask him, but it's been bugging me, so hopefully someone here will know what to do.
A series of measurements are made in order to determine the molar mass of an unknown gas. First, a flask is evacuated and found to weigh 134.567 g. It is then filled with the gas to a pressure of 735 mm Hg at 31 degrees C and found to weigh 1067.9 g. (The density of the water at this temperature is 0.997 g/ml.) Assuming that the ideal-gas equation applies, calculate the molar mass of the unknown gas.
Yeah, I've looked at this for a while and can't really see what to do, I swear it doesn't give enough information. And then it says "the" water, a definite article instead of using "some" (or not using an article at all) the indefinite article, but water wasn't mentioned before that. So yeah, if anyone knows what to do it would be much appreciated.
Edit: replaced "a" with "some".
A series of measurements are made in order to determine the molar mass of an unknown gas. First, a flask is evacuated and found to weigh 134.567 g. It is then filled with the gas to a pressure of 735 mm Hg at 31 degrees C and found to weigh 1067.9 g. (The density of the water at this temperature is 0.997 g/ml.) Assuming that the ideal-gas equation applies, calculate the molar mass of the unknown gas.
Yeah, I've looked at this for a while and can't really see what to do, I swear it doesn't give enough information. And then it says "the" water, a definite article instead of using "some" (or not using an article at all) the indefinite article, but water wasn't mentioned before that. So yeah, if anyone knows what to do it would be much appreciated.
Edit: replaced "a" with "some".
Stand Back!! Im going to attempt science!!
Partaker of the Elixir of True seeing, and Yuna's most trusted advisor.
Partaker of the Elixir of True seeing, and Yuna's most trusted advisor.
This message last edited by Hobo on 09/05/2011 at 06:46:47 PM
Chemisty Question
- 09/05/2011 06:11:03 PM
609 Views
Isn't there some kind of information missing? Like a volume?
- 09/05/2011 07:07:49 PM
431 Views
Yeah, it seemed like the water was kind of randomly thrown in there. I gave all the info I had. *NM*
- 09/05/2011 08:54:30 PM
227 Views
Seems like a measurement on water is left out here
- 09/05/2011 07:18:58 PM
818 Views
Boba Fett smiley is irritating
That was about what I thought. I assumed I was missing some info.
- 09/05/2011 08:50:00 PM
564 Views
Re: That was about what I thought. I assumed I was missing some info.
- 09/05/2011 09:29:36 PM
467 Views