Question

We have to prepare a buffer solution of NH₃ and NH₄Cl which have pH = 8.26. For this initially we have 1 litre 0.2 M ammonia solution, then how much amount of NH₄Cl in gram is added for this [pk_b = 4.74 & GMM of NH₄Cl = 53.5 g]

Answer 1

p^H = 8.26

p^OH = 5.74

NH₃ + NH₄Cl ⇒ Basic buffer solution