Calculate kb for a 0. 1 m solution of cyanide ion, given that ka for hydrocyanic acid is 6. 2 x 10−10.

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Pstnonsonjokuid Pstnonsonjokuid · Answer 1

From the calculations, the acid dissociation constant is obtained as 1.6 × 10⁻⁵.

The term Ka stands for acid dissociation constant. It shows the extent to which an acid can be dissociated in solution.

We have Ka = 6. 2 x 10^−10

Kb = Kw/Ka =

Now;

Ka = acid dissociation constant

Kb= Base dissociation constant

Kw = ion product of water

Hence;

Kb = 1 x 10^−14/6. 2 x 10^−10

Kb = 1.6 × 10⁻⁵

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