Predict whether the equilibrium for each reaction lies to left or right as written. a. NH4+(aq)...

Predict whether the equilibrium for each reaction lies to left or right as written.

a. NH4+(aq) PO43-(aq) ? NH3(aq) + HPO42-(aq)

b. CH3COOH(aq) + CN-(aq) ?? CH3COO-(aq) + HCN(aq)

Expert Solution

a.Ka for NH4⁺ =5.6 x 10-10

Ka for HPO4^2-=6.23 x 10-8
(Ka for HPO4^2->Ka for NH4⁺) so reaction favoured in left(reactants side)

b..Ka for CH3COOH =1.76 x 10-5

Ka for HCN=6.17 x 10-10

(Ka for CH3COOH>Ka for HCN so reaction favoured in right(product side)

queen_honey_blossom answered 2 years ago

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