A solution is formed by mixing 0.2 M NH_(4)Cl and 0.1M NH_(3). The pH of the solution will be close to (pK_(b) of ammonia solution = 4.75).

A solution is formed by mixing 0.2 M NH_(4)Cl and 0.1M NH_(3). The pH

1.	A solution is formed by mixing 0.2 M NH_(4)Cl and 0.1M NH_(3). The pH of the solution will be close to (pK_(b) of ammonia solution = 4.75).
Answer» Solution :`POH = pK_(B) + log .(["SALT"])/(["BASE"])=4.75 + log.(0.2)/(0.1)` `=4.75+ log 2 = 4.75 + 0.3010 ~=5.0` `:. PH = 14 - 5.0 = 9`.