Answer:
45.0 L.
Explanation:
CO₂(g) + 2LiOH(s) → Li₂CO₃(s) + H₂O(i).
Every 2.0 moles of LiOH absorb 1.0 mol of CO₂.
So, 4.0 moles of LiOH absorb 2.0 mol of CO₂.
Since, every 1.0 mole of a gas occupies 22.4 L.
∴ 2.0 moles of CO₂ will occupy (2 x 22.4 L) = 44.8 L ≅ 45.0 L.
∴ 4.0 moles of lithium hydroxide (LiOH) will absorb 45.0 L of CO₂.