The given equation is absolutely vital to answering this question. It says that 2 mol sodium hydroxide, approx.
So we must calculate the molar quantities of our starting materials.
So, clearly, sulfuric acid is the limiting reagent. And at most, I can get
Given this, only
All of these calculations relies on the given stoichiometric reaction. If I don't have this, or if I have not balanced it correctly, I will not be able to do the calculation. Capisce?