When ammonium chloride is added to ammonia so | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Ammonia solution contains $NH_4OH$ which is a weak base and ionizes as $NH_4OH \rightleftharpoons NH_4^{+} + OH^{-}$.When $NH_4Cl$ is added,it pro

Vedclass · Accepted Answer

decreased

Vedclass · Answer

(C) Ammonia solution contains $NH_4OH$ which is a weak base and ionizes as $NH_4OH \rightleftharpoons NH_4^{+} + OH^{-}$.When $NH_4Cl$ is added,it provides $NH_4^{+}$ ions,which is a common ion.Due to the common ion effect,the equilibrium shifts to the left,decreasing the concentration of $OH^{-}$ ions.Since $pH = 14 - pOH$ and $pOH = -\log[OH^{-}]$,a decrease in $[OH^{-}]$ leads to an increase in $pOH$,which consequently results in a decrease in the $pH$ value.

When ammonium chloride is added to ammonia solution,the $pH$ of the resulting solution will be

Similar Questions

$A$ solution is $0.1 \ M$ with respect to $AcOH$ and $0.2 \ M$ with respect to $AcONa$. What is the concentration of $Ac^-$? (Given $x = 0.2$)

Explain the effect on the resulting solution when $0.05 \ M$ acetate ion is added to a $0.05 \ M$ acetic acid solution.

Write about the common ion effect.

The presence of $NH_4Cl$ in the test solution while precipitating group $III-A$ hydroxides (in qualitative inorganic analysis) helps in:

Calculate the degree of ionization of $0.05 \ M$ acetic acid if its $p K_{ a }$ value is $4.74$. How is the degree of dissociation affected when its solution also contains $(a)$ $0.01 \ M$ $HCl$ and $(b)$ $0.1 \ M$ $HCl$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module