Question #e9ae8
1 Answer
Explanation:
Let
Given:
The Ideal Gas law is:
We are not given the volume but we do not need it; the reason will soon become obvious. Solve for the Volume per Moles:
I am taking an extra step to show you that the Numbers for temperature and pressure cancel and and their units are canceled by the gas constant:
No matter what Volume or number of moles we pick, at this temperature and pressure, the following ratio is true:
We are given the mass density:
To find the Molar Mass, we use the Factor-Label Method (a.k.a. Dimensional Analysis):