Answer: 44.8 Liters
Step-by-step explanation: According to law of conservation of mass, the sum of mass on the reactant side must be equal to the sum of mass on product side.
The balanced chemical equation is:

Thus 2 moles of
absorb 1 mole of
i.e. 22.4 Liters at STP
4 moles of
absorb

Thus 4 moles of
will absorb 44.8 L of
