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Chemistry
A solution of pH 9.0 is 1000 times as basic as a solution. The pH of this solution is:
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Q. A solution of $pH \,9.0$ is 1000 times as basic as a solution. The $pH$ of this solution is:
Equilibrium
A
9
43%
B
8
0%
C
7
14%
D
6
43%
Solution:
$pH =-\log \left[ H ^{+}\right]$
$pH$ of solution $=9,\left[ H ^{+}\right]=10^{-9}$
This solution is 1000 times more basic than solution whose
$\left[ H ^{+}\right]=10^{-9} \times 10^{3} =10^{-6} $
$pH =-\log \left[ H ^{+}\right]$
$=-\log \left[\log ^{-6}\right]=6 $