Question

How many moles of air are there in a 3 L container at 1 atm pressure and 294 K?Use PV=nRT

Answer 1

The ideal gas law states: $PV=nRT$

If we put in the data.

$1\cdot7=n\cdot8.31\cdot294 \\n=\boxed{2.865\cdot10^{-3}mol}=\boxed{2.865mmol}$

Hope this helps.

r3t40