CameraIcon

SearchIcon

MyQuestionIcon

3

You visited us 3 times! Enjoying our articles? Unlock Full Access!

Buffer Solutions

If a buffer s...

Question

If a buffer solution of 2,4-dinitrophenol has a pH of 5, what is the ratio of dissociated to undissociated molecules of 2,4-dinitrophenol in the solution? (p $K_{a}$ of 2,4-dinitrophenol = 4)
10

Open in App

Solution

The correct option is A 10
pH= p $K_{a}$ + log $\frac{[c o n j u g a t e b a s e]}{[a c i d]}$

5 = 4 + log $\frac{[c o n j u g a t e b a s e]}{[a c i d]}$

log $\frac{[c o n j u g a t e b a s e]}{[a c i d]}$ = 1

$\frac{[c o n j u g a t e b a s e]}{[a c i d]}$ = $\frac{[d i s s o c i a t e d]}{[u n d i s s o c i a t e d]}$ = 10

Suggest Corrections

thumbs-up

0

Similar questions

Q. If a buffer solution of 2,4-dinitrophenol has a pH of 5, what is the ratio of dissociated to undissociated molecules of 2,4-dinitrophenol in the solution? (p

K_{a}

of 2,4-dinitrophenol = 4)

Q. The toxic compound

2, 4 - dinitrophenol

K_{a} = 10^{- 4} M

. In an experiment, a buffer solution of

2, 4 - dinitrophenol

was prepared with the

p H

5

. Calculate the ratio of the concentrations of the dissociated ion to the undissociated acid:

Q. Which is stronger acid in the following pair?

2, 4

-Dinitrophenol and

3, 5

-Dinitrophenol.

Q. Unlike phenol, 2,4-dinitrophenol is soluble in sodium carbonate solution in water because ?

Q. Uncouples such as

2, 4

-dinitrophenol have no effect on __________________.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Buffer Solutions

Standard XI Chemistry

Join BYJU'S Learning Program

CrossIcon