NCERT Class XI Chemistry Equilibrium Solutions

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Question : 43
Total: 73
The ionization constant of HF, HCOOH and HCN at 298 K are 6.8 × 104, 1.8 × 104 and 4.8 × 109 respectively. Calculate the ionization constants of the corresponding conjugate base.
Solution:  
Kb =
Kw
Ka

For F , Kb =
1014
6.8×104
= 1.47 × 1011
For HCOO , Kb =
1014
1.8×104
= 5.6 × 1011
For CN , Kb =
1014
4.8×109
= 2.08 × 106
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