Calculate the pOH -p K b for the buffer, 0.20 M NH 3, 0.40 M NH 4 Cl , K b for ammonia =10

Question

Calculate the pOH -p K b for the buffer, 0.20 M NH 3, 0.40 M NH 4 Cl , K b for ammonia =10 (A) 0.50 (B) 0.60 (C) 0.30 (D) 0.75

Tardigrade Admin · Accepted Answer

pOH =p K b + log ([ text Salt ]/[ text Base ]) pOH -p K b = log (0.4/0.2)=0.30

Q. Calculate the $pO H - p K_{b}$ for the buffer, $0.20 M N H_{3}$ , $0.40 M N H_{4} Cl, K_{b}$ for ammonia $= 10$