Q.

A buffer solution is prepared by mixing CH3COONa and CH3COOH. The pKa of acetic acid is 4.74. To maintain the pH of the buffer solution as 6.04, the concentration ratio of CH3COONa and CH3COOH to be maintained is

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

1 : 10

b

20 : 1

c

1 : 20

d

2 : 1

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

PH of an acidic buffer is given as

\large {P^H} = {P^{{K_a}}} + \log \frac{{\left[ {salt} \right]}}{{\left[ {acid} \right]}}
\large \Rightarrow 6.04 = 4.74 + \log \frac{{\left[ {salt} \right]}}{{\left[ {acid} \right]}}
\large \Rightarrow \log \frac{{\left[ {salt} \right]}}{{\left[ {acid} \right]}} = + 1.3
Question Image

 

Question Image
Watch 3-min video & get full concept clarity

hear from our champions

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon
A buffer solution is prepared by mixing CH3COONa and CH3COOH. The pKa of acetic acid is 4.74. To maintain the pH of the buffer solution as 6.04, the concentration ratio of CH3COONa and CH3COOH to be maintained is