To standardize a solution of NaOH, one uses a primary standard called potassium hydrogen phthalate (KHP for short). It is a monoprotic acid that can be obtained extremely pure and dried to a constant weigh out 0.556g of KHP and dissolve it in water. It requires 14.48 mL of NaOH solution to reach the endpoint. What is the concentration of the NaOH solution?
The NaOH solution from #1 above is used to titrate a diprotic acid solution of unknown concentration. 25.00 mL of the acid solution requires 26.54 mL of NaOH solution. What is the concentration of the acid solution?