a. How many moles of N2 are present in a 1.00 qt flask that has a pressure of 425 torr at a temperature of 35°C?
What is the mass in this na2?
It would be much simpler to change quart to liters first, then torr to kpa
PV=nRT
n= PV/RT Temps in Kelvins, V in liters, P in kpa
I did that but I keep getting the wrong answer
4 answers
Why don't you show your work and let us find the error? You can play hide and seek with these problems all day long.
1L=1.06qt
1.00 / 1.06 = 0.94339623
425 torr = 56.7 kpa
35= 308.15 k
56.7/0.0821*308.15 = 212814.921
1.00 / 1.06 = 0.94339623
425 torr = 56.7 kpa
35= 308.15 k
56.7/0.0821*308.15 = 212814.921
Your numbers don't look all that bad except you are using the wrong R. The value of 0.08206 is used with p in atm. When you use kPa R is 8.314. I would have used 0.946 for 1 qt to L (the easy way to do the conversion is to go to Google, type in "1.00 quart to" without the quotation marks and hit the enter key. Up pops 0.946 L).
I used what you said but I'm still getting the wrong answer. I'm sorry I really struggle in chemistry