What is the percentage dissociation of 0.1 M solution of acetic acid? $\left(K_a=10^{-5}\right)$

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Professor PC Thomas Classes · Answer

(c) : $\alpha=\sqrt{\frac{K_a}{C}}$ or $\alpha=\sqrt{\frac{10^{-5}}{0.1}}=10^{-2}$ 
$\%$ dissociation $=10^{-2} 	imes 100=1 \%$