Equilibrium Question 224
Question: At $ 90^{o}C $ pure water has $ [H_3{O^{+}}]={10^{-6}},M, $ the value of $ K_{w} $ at this temperature will be [IIT 1981; MNR 1990; CBSE PMT 1993; UPSEAT 1999]
Options:
A) $ {10^{-6}} $
B) $ {10^{-12}} $
C) $ {10^{-14}} $
D) $ {10^{-8}} $
Show Answer
Answer:
Correct Answer: B
Solution:
For pure water $ [{H^{+}}]=[O{H^{-}}] $ ,
$ \therefore ,K_{w}={10^{-12}} $ s
