Use primary standard to determine unknown concentration
Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the unwieldy formula of KHC8H4O4. This is often written in shorthand notation as KHP.
If 28.59mL of a barium hydroxide solution are needed to neutralize 2.228 grams of KHP, what is the concentration (mol/L) of the barium hydroxide solution?