Answer : The moles of Al is, 0.50 mole.
The moles of is, 0.75 mole.
The volume of is, 16.8 liters.
Explanation : Given,
Mass of aluminum = 13.5 g
Molar mass of aluminum = 26.98 g/mole
First we have to calculate the moles of aluminum.
The moles of Al is, 0.50 mole.
Now we have to calculate the moles of .
The balanced chemical reaction will be,
From the balanced reaction, we conclude that
As, 2 moles of Al react to give 3 moles of
So, 0.50 moles of Al react to give moles of
The moles of is, 0.75 mole.
Now we have to calculate the volume of .
At STP,
As, 1 mole of contains 22.4 L volume of
So, 0.75 mole of contains volume of
The volume of is, 16.8 liters.