A gaseous mixture contains 413.0 Torr of H2(g), 372.1 Torr of N2(g), and 70.1 Torr of Ar(g). Calculate the mole fraction, X, of each of these gases.

Answer 1

Ptotal = pH2 + pN2 + pAr

XH2 = pH2/Ptotal
XN2 = pN2/Ptotal
XAr = par/Ptotal

Answer 2

I don't know why this posted again. Sorry and I have some questions. How do I find the Ph2 and PN2?

Answer 3

Hello Dr. Bob, I'm also having issues with a similar problem. I was able to calculate the XAr, but am unable to find the correct answers for H2 and N2, can you please help this Blake kid and I out? My book shows no problems of this sort, in order for me to work out and i'm unable to find anything else on the internet other than Blake's other post which you replied you had already helped out. What am I missing here? I've tried dividing the numbers by 2 multiplying them by 2. I've tried multiplying my atm conversions from Torr for H2 and N2 by the Ptotal. I cannot seem to figure out where I'm going wrong. Thank you for your time Sir. I do greatly appreciate your help!