Aqueous solutions of HNO_3,KOH,CH_3COOH,and C | vedclass

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

Question

(C) buffer solution is formed by a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid.$1$. In option $C$,$HNO_3$ (str

Vedclass · Accepted Answer

$C, D$

Vedclass · Answer

(C) buffer solution is formed by a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid.$1$. In option $C$,$HNO_3$ (strong acid) reacts with $CH_3COONa$ (salt of weak acid) to form $CH_3COOH$ (weak acid) and $NaNO_3$. If $HNO_3$ is the limiting reagent,the resulting mixture contains $CH_3COOH$ and $CH_3COONa$,which acts as an acidic buffer.$2$. In option $D$,the mixture contains $CH_3COOH$ (weak acid) and $CH_3COONa$ (conjugate base),which is a classic acidic buffer system.Therefore,both $C$ and $D$ can form a buffer.

Aqueous solutions of $HNO_3$,$KOH$,$CH_3COOH$,and $CH_3COONa$ of identical concentrations are provided.
The pair$(s)$ of solutions which form a buffer upon mixing is(are):
$A$. $HNO_3$ and $CH_3COOH$
$B$. $KOH$ and $CH_3COONa$
$C$. $HNO_3$ and $CH_3COONa$
$D$. $CH_3COOH$ and $CH_3COONa$

Similar Questions

$50 \ mL$ of $0.02 \ M$ $NaHSO_4$ is mixed with $50 \ mL$ of $0.02 \ M$ $Na_2SO_4$. Calculate the $pH$ of the resulting solution. $[pK_{a2} (H_2SO_4) = 2]$

What is the $pH$ of a buffer solution prepared by mixing $0.01 \ M$ weak acid and $0.02 \ M$ salt of weak acid with a strong base? $(pK_{a} = 4.680)$

$20$ mL of a solution of acetic acid required $28.4$ mL of $0.1$ $M$ NaOH for its neutralization. $A$ solution $(X)$ was prepared by mixing $20$ mL of the above acetic acid and $14.2$ mL of $0.1$ $M$ NaOH solution. What is the pH of the solution $(X)$? ($pK_a$ value of acetic acid is $4.75$).

The $pH$ of blood is maintained due to the mechanism of ...... .

The $pH$ of the blood buffer $CO_2-HCO_3^-$ is $7.4$. The ratio of conjugate base to acid is ....... $(K_a (H_2CO_3) = 4.5 \times 10^{-7})$

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Aqueous solutions of $HNO_3$,$KOH$,$CH_3COOH$,and $CH_3COONa$ of identical concentrations are provided.The pair$(s)$ of solutions which form a buffer upon mixing is(are):$A$. $HNO_3$ and $CH_3COOH$$B$. $KOH$ and $CH_3COONa$$C$. $HNO_3$ and $CH_3COONa$$D$. $CH_3COOH$ and $CH_3COONa$