Barrons SAT Subject Test Chemistry, 13th Edition

55. (B) In the titration, the reaction is:

2HCl + Ca(OH) 2 → CaCl 2 + 2H 2 O

The acid to base ratio is 2 : 1, or (moles acid used) = 2(moles base

used), so MaVa = 2MbVb, where M is the molarity and V is the volume

expressed in liters, then