Homework Help: ap chemistry

Posted by cheri on Saturday, February 9, 2013 at 9:35pm.

An apparatus consists of a 2 L flask containing
nitrogen gas at 25C and 819 kPa, joined by
a valve to a 12 L flask containing argon gas
at 25C and 51 kPa. The valve is opened and
the gases mix. What is the partial pressure of
nitrogen after mixing?
Answer in units of kPa

What is the partial pressure of argon after
mixing?
Answer in units of kPa

What is the total pressure of the gas mixture?
Answer in units of kPa

ap chemistry - cheri, Saturday, February 9, 2013 at 9:39pm
for the first one i did 2 divided by 14 times 819 and got 116.99 but i dont know how to do the other two problems
ap chemistry - DrBob222, Saturday, February 9, 2013 at 9:54pm
PN2 is right.
Why wouldn't you do pAr the way way.
51 x (12/14) = ?

Total P = pN2 + pAr

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