A buffer solution is prepared by mixing 0.2 M NH O ₄ OH and 1 M NH ₄ Cl . What is the pH value of buffer solution? (Give pK _ b =7.744 )

Step-by-step solution

For a basic buffer solution, aligned pOH & = pK _ b + ₁₀ [ Salt ] [ Base ] & =7.744+ ₁₀ 1 0.2 & =7.744+0.698 pOH & =8.44 Now & , pH + pOH =14 pH & =14- pOH =14-8.44=5.56 aligned