Question

Difference in calculating molar masses

  1. Calculate the pressure (atm) of 1 mole of hydrogen gas at 298 K using the ideal gas law for a 50.0 mL flask.

vs.

  1. Calculate the pressure (atm) of 1 mole of hydrogen gas at 298 K using the Van der Waals equation for a gas in a 1.00 L flask.

What's the difference between these two questions?