Find out the equilibrium pH for .0001 M Ammonium Chloride, NH4Cl salt of the weak conjugate acid, pK=9.25.
Explain how much hypochlorous acid (HOCl pKa=7.60) must be added to pure water to make solution of pH 4.3? pH 6.5?
The method my instructor utilizes is to set up equations for equilibrium, mass balance, and charge balance. Then making assumptions solve for [H+] using a system of equations