Home
Class 12
CHEMISTRY
K(a) for HCN is 5 xx 10^(-10) at 25^(@)C...

`K_(a)` for `HCN` is `5 xx 10^(-10)` at `25^(@)C`. For maintaining a constant `pH` of `9.0`, the volume of `5M KCN` solution required to be added to `10mL` of `2M HCN` solution is

A

4 mL

B

7.95 mL

C

9.3 mL

D

2mL

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • JEE MOCK TEST 7

    NTA MOCK TESTS|Exercise CHEMISTRY - Subjective Numerical|5 Videos

  • JEE MOCK TEST 6

    NTA MOCK TESTS|Exercise CHEMISTRY|25 Videos

  • JEE MOCK TEST 8

    NTA MOCK TESTS|Exercise CHEMISTRY|25 Videos

Similar Questions

Explore conceptually related problems

K_(a) for HCN is 5.0xx10^(-10) at 25^(@)C . For maintaining a constant pH of 9. Calculate the volume of 5.0M KCN solution required to be added to 10 mL of 2.0M HCN solution.

K_(a) for HCN is 5xx10^(-10) at 25^(@)C . For maintaining a constant pH of 9, the volume in ml of 5 M KCN solution required to be added to 10 ml of 2 M HCN solution is

The volume of 10.50 M solution required to prepare 1.0 L of 0.25 M solution of HNO_(3) is :

Calculate the volume of 0.015 M HCl solution required to prepare 250 mL of a 5.25 xx 10^(-3) M HCl solution

Ksp of M(OH)_(2) is 5 xx 10^(-16) at 25^(0)C . The pH of its saturated solution at 25^(0)C is

1.0 M HCN solution is 1.0 percent ionised. The number of CN^(-) ions in 250 ml of the solution is :