Homework Help: chemistry

Posted by supaflychic101 on Monday, March 1, 2010 at 6:44pm.

A 1 L flask is filled with 1.40 g of argon at 25 degrees celcius. A sample of ethane vapor is added to the same flask until the total pressure is 1.00 atm.

Whatis the total pressure of Argon in the flask ?

What is the partial pressure of ethane in the flask?

chemistry - DrBob222, Monday, March 1, 2010 at 7:13pm
Use PV = nRT to calculate the pressure of Ar in the flask at the beginning.
Then total pressure = partial pressure Ar + partial pressure ethane.
chemistry - jargal O, Monday, March 29, 2010 at 3:15am
Please, can you give the answer???

i want to double check
chemistry - jargal O, Monday, March 29, 2010 at 3:15am
Please, can you give the answer???

i want to double check
chemistry - shaiina r, Monday, April 19, 2010 at 10:25pm
the partial pressure of Argon is .888 atm
chemistry - maya, Wednesday, August 4, 2010 at 12:07pm
1. PV=nRT
Par(1L)=(0.035mol)(0.0821)(25+273)
=0.856 atm

2.Ptotal = Par + Pethane
Pethane= 1.00atm-0.856atm
= 0.144atm

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