If 0.694 grams of pure KHP are needed to exactly neutralize 30.5 mL of a calcium hydroxide solution, what is the concentration (in molarity) of the base solution?

Answer 1

2KHP + Ca(OH)2 ==> 2H2O + Ca(PK)2

moles KHP = grams/molar mass
Convert moles KHP to moles Ca(OH)2 (multiply by 2).
M Ca(OH)2 = moles Ca(OH)2/L Ca(OH)2.