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pressure problem
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ghostwriter:
i've been working on this problem for a while and here it goes:
For an ideal gas, calculate the pressure in atm if 0.00825 mol occupies 174 mL at 215 degrees C.
I tried to do it by the equation PV = nRT and not getting the right anwser. I've coverted celsius to kelvin and got the equation:
P(0.174L) = 0.00825(0.08206)(488LK) and didnt get anything. (It's a multiple choice question.)
any help will be greatly appreciated. thankyou - ghost
mike:
PV=nRT
V = 174mL = 0.174L
n = 0.00825mol
R = 0.0821 L.atm.K-1.mol-1
T = 215 oC = 488K
P = nRT/V
= 0.000825 x 0.0821 x 488 / 0.174
= 0.19atm
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