$\,\quad\quad\quad\quad2s\quad\quad\quad3s$
$k _{ sp } =(2 s )^{2}(3 s )^{3}$
$=4 s ^{2} \times 27( s )^{3}$
$=108( s )^{5}$
$( s )^{5} =\frac{1.08 \times 10^{-73}}{108}$
$\Rightarrow s =10^{-15}$
$(K_w = 10^{-14})$
(આપેલ : $\left.pK _{ a }\left( CH _{3} COOH \right)=4.76\right)$
$\log 2=0.30$
$\log 3=0.48$
$\log 5=0.69$
$\log 7=0.84$
$\log 11=1.04$
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