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Assuming that the degree of hydrolysis is small , the pH of 0.1 M solution of sodium acetate $\;(K_{a}=1.0 \times 10^{-5})\;$ will be :

$(a)\;5.0\qquad(b)\;6.0\qquad(c)\;8.0\qquad(d)\;9.0$

1 Answer

Kh=kw/ka =10^-14/10^-5 =10^-9 h=√kh/c h=√10^-9/0.1 So h becomes 10^-5 We know that concentration of acid can be written as [H+]= CH [H+] becomes 10^ -5 Therefore pH happens to be 5
answered Dec 16, 2017 by utsavtiwari232
 

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