What is the molecular mass (in amu) of a gaseous element if 8.79 g occupies 4.54 L at 447.77 torr and 37.6 °C?
1 Answer
The molecular mass is 83.8 u.
Explanation:
We can use the Ideal Gas Law to solve this problem.
#color(blue)(|bar(ul(color(white)(a/a)PV = nRT color(white)(a/a)|)))" "#
Since
#color(blue)(|bar(ul(color(white)(a/a)PV = m/MRTcolor(white)(a/a)|)))" "#
We can rearrange this to get
#M = (mRT)/(PV)#
∴
∴ The molecular mass is 83.8 u.