Hydrocyanic acid, HCN, ionizes according to the equation HCN(aq) H + (aq) + CN (aq)

Question:

Hydrocyanic acid, HCN, ionizes according to the equation 

HCN(aq) ⇌ H+(aq) + CN(aq) 

Predict the direction of equilibrium shift for each of the following stresses:

(a) Increase [HCN]

(b) Decrease [H+]

(c) Increase [CN]

(d) Add aqueous HNO3

(e) Add solid KCN

(f) Add solid KCl

(g) Add solid KOH

(h) Increase pH.

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