Column- I Column -II (A) 5 mllN C H 3 COO H + 5 mllN NaOH 1. pH 7 (B) ) \displaylines 15 mllN C H 3 COO H + 10 mllN NaOH 2. pH

Question

Column- I Column -II (A) 5 mllN C H 3 ​ COO H ​ + 5 mllN NaOH ​ 1. pH > 7 (B) ) \displaylines 15 mllN C H 3 ​ COO H ​ + 10 mllN NaOH ​ 2. pH < 7 (C) 5 ml lN HCl ​ + 15 ml lN NH 4 ​ OH ​ 3. Buffer (D) 1 ml lN HCl ​ + 1 ml 2 N NaOH ​ 4. Hydrolysis occurs

TestHub · Accepted Answer

In (A) p H = 7 + 2 1 ​ p K a ​ + 2 1 ​ lo g C = 7 + 2 5 ​ + 2 1 ​ lo g ​ 10 5 ​ = 7 + 2.5 + 2 1 ​ ( − 0.3010 ) = 9.34 In (B), since acid is left along with salt, we have a buffer solution. p H = 5 + lo g ​ 5 10 ​ < 7 In (C), pO H = 5 + lo g 10 5 ​ = 5 − 0.3010 = 4.699

Chemistry - Ionic Equilibrium Question with Solution | TestHub

Options:

Doubts & Discussion

Column- I	Column -II
(A) $5 mllN C H_{3} COO H + 5 mllN NaOH$	1. pH > 7
(B) ) $\displaylines 15 mllN C H_{3} COO H + 10 mllN NaOH$	2. pH < 7
(C) $5 ml lN HCl + 15 ml lN NH_{4} OH$	3. Buffer
(D) $1 ml lN HCl + 1 ml 2 N NaOH$	4. Hydrolysis occurs