Answer : The concentration of HCN in the solution is
Explanation :
First we have to calculate the value of .
The expression used for the calculation of is,
Now put the value of in this expression, we get:
Now we have to calculate the pH of the solution.
The hydrolysis reaction will be,
Formula used :
Now we have to calculate the concentration of HCN in the solution.
Using Henderson Hesselbach equation :
Now put all the given values in this expression, we get:
Therefore, the concentration of HCN in the solution is