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Bashyboy
Dec18-11, 12:23 PM
1. The problem statement, all variables and given/known data
At 1000 deg C and 10 torr, the densit of a certain element in the gaseous state is 2.55×10^-3 g/L. The element is:


2. Relevant equations



3. The attempt at a solution
So, i took the the density equation, that of which is derived from the ideal gas law, and rearranged to solve for the molar mass, but, unfortunately, it did not suceed. What am I to do to solve this problem?

Borek
Dec18-11, 12:38 PM
What molar mass did you get?

Bashyboy
Dec18-11, 12:47 PM
I got 21 g/mol--which is the answer. Sorry, i was looking at the wrong answer