Suppose you are standardizing a sodium hydroxide solution with KHP

(molar mass=204.2 g/mol) according to the equation

KHP+NaOH⟶H2O+NaKP

You prepare the standard solution from 0.303 g of KHP
in 250.0 mL of water. You then require 9.51 mL of NaOH

solution to complete the titration.

What is the concentration of the NaOH
solution?