Consider the neutralization reaction that takes place when hydrochloric acid reacts with aqueous calcium hydroxide

Question

Write a conversion factor that relates moles of hydrochloric to moles of calcium hydroxide for this reaction

Answer 1

Balanced Equation is:

2HCl + Ca(OH)2 --> 2H2O + CaCl2

So you need 1 mole of Ca(OH)2 for every mole of HCl.

2 moles HCl / 1 mole Ca(OH)2

Answer 2

So you need 1 mole of Ca(OH)2 for every mole of HCl.

Should be.
So you need 1 mol Ca(OH)2 for every 2 mols HCl. The Conversion factor is ok.