Will medal "Determine the partial pressure of the hydrogen collected in the gas collection tube." I'm having trouble wuth this, I know I have to do this: partial pressure H2 = total pressure - vapor pressure of water. I know the vapor pressure of water, it's 18.7 torr, but I don't know how to know the total pressure. Just in case here's the rest of the info I gathered: Volume of collected gas mL, 28 : Barometric pressure, 1.1 : Room temp Celsius, 21
ok, I think that helped, if i did this right I have 14 moles
I have to do PV=nRT
\[P 28 = 14 R 294.15\]
Idk what R to use, would I use the same one as in the video? I'm going to assume that's the one I use
so \[P28=14\times8.315 m ^{3} Pa/moles K \times 294.15\]
That seems right to me, but I need a second opinion. I am really rusty on this. I get it, but I am not completely sure.
@e.mccormick @bibby @shamim @Directrix
@dtan5457
units pay attention to units you are using
did I get the units wrong?
if u r using L for volume atm for pressure R = 0.08206 if you are using m3 for volume Pa for pressure R = 8.31
from the working u showed yes, the unit that u used for volume is incorrect
oh ok, so I should've used the first one you mentioned?
yeah if thats easier for you :)
dont forget about temperature bein in Kelvin unit, in both cases
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