$A$ buffer solution is prepared by mixing $0.1 \ M \ HCN$ and $0.2 \ M \ NaCN$. What is the $pH$ of the buffer solution if $pKa$ of $HCN$ is $9.3$? $(\log 2 = 0.3010)$
- A$4.2$
- B$2$
- C$9.6$
- D$6.15$
Explore More
Similar Questions
Which of the following mixtures in water acts as a buffer?
$100 \ mL$ of a solution contains $0.1 \ M$ $NH_4OH$ and $0.1 \ M$ $NH_4Cl$. The $pH$ of the solution will not change on adding :-
Difficult
View SolutionThe $pK_a$ of a weak acid $(HA)$ is $4.5$. The $pOH$ of an aqueous buffer solution of $HA$ in which $50\%$ of the acid is ionized is
MediumAIEEE 2007
View Solution$pH$ of a mixture which is $0.1 \ M$ in $CH_3COOH$ and $0.05 \ M$ in $(CH_3COO)_2Ba$ is [$pK_a$ of $CH_3COOH$ = $4.74$]
Medium
View SolutionWhich of the following solutions cannot act as a buffer?
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo