Posted by deb on .
How many coulombs of positive charge are in 3.8 mol of O2 gas?

physics 
drwls,
Only the ones due to protons in the nuclei, and they are all neutralized by electrons surrounding the molecules.
If they want the charge in nuclei, for 3.8 moles, that would be
3.8*32*e*(Avogadro's number) 
physics 
deb,
I came out with 1.99e26 and I got it wrong. What is the point of multiplying by e?

physics 
drwls,
They are asking for charge (in Coulombs), not the number of protons. +e is the charge of one proton.

physics 
deb,
So I need to multiply by 10 not e? Is that right? So the answer should be 7.32e26