A buffer solution can be prepared by mixing e | vedclass

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Question

(A) buffer solution is a mixture that resists changes in $pH$ upon the addition of small amounts of acid or base. It typically consists of a weak base

Vedclass · Accepted Answer

$0.2 \, M \ NH_{4}OH$ and $0.1 \, M \ HCl$

Vedclass · Answer

(A) buffer solution is a mixture that resists changes in $pH$ upon the addition of small amounts of acid or base. It typically consists of a weak base and its salt,or a weak acid and its salt.In option $A$,mixing equal volumes of $0.2 \, M \ NH_{4}OH$ (weak base) and $0.1 \, M \ HCl$ (strong acid) results in a reaction where $0.1 \, M$ of $NH_{4}OH$ reacts with $0.1 \, M$ of $HCl$ to form $0.1 \, M \ NH_{4}Cl$ (salt). The remaining concentration of $NH_{4}OH$ is $0.1 \, M$. Since the final mixture contains both the weak base $(NH_{4}OH)$ and its salt $(NH_{4}Cl)$,it forms a basic buffer solution.

$A$ buffer solution can be prepared by mixing equal volumes of

Similar Questions

In order to prepare a buffer solution of $pH = 5.74$,sodium acetate is added to acetic acid. If the concentration of acetic acid in the buffer is $1.0 \ M$,the concentration of sodium acetate in the buffer is $......... \ M$. (Round off to the nearest integer).
[Given: $pKa$ (acetic acid) $= 4.74$]

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Which of the following mixtures will produce a buffer solution with $pH = 9$?

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