PLEASE HELP ME OUT!!!

If you put 3 grams of H2 gas and 2 grams of F2 gas into a 2.5L tank and seal it at 283.15K what is the pressure inside the tank?
Solve this problem by doing it this way.

1 calculate the moles of H2 and F2 gas by using the periodic table.

2 Use the ideal gas law to calculate the pressure inside the tank from Hydrogen

3 Use the ideal gas law to calculate the pressure inside the tank from Fluorine.

4. Add the two pressures together to get the total pressure.

Hint the answer is greater than 1000 and less than 3000