Equilibrium Question 322
Question: A 0.1N solution of an acid at room temperature has a degree of ionisation 0.1. The concentration of $ O{H^{-}} $ would be [MH CET 1999]
Options:
A) $ {10^{-12}}M $
B) $ {10^{-11}}M $
C) $ {10^{-9}}M $
D) $ {10^{-2}}M $
Show Answer
Answer:
Correct Answer: A
Solution:
$ [{H^{+}}]=C\times \alpha =0.1\times 0.1={10^{-2}}M $ pH = 2; pOH = 12 ; $ [O{H^{-}}]={10^{-12}}M $ .
