The amount of (NH4)2SO4 to be added to 500mL of 0.01m NH4OH solution (pKa for NH+4 is 9.26) prepare a buffer of pH=8.26 is?
Calculate the amount of NH3 and NH4Cl required to prepare a buffer solution of pH = 9.0, when the total concentration of buffering reagents is 0.6 moles/L. Given pKb of NH3 = 4.7