Question

Is a forward or reverse reaction favored?
Review the reversible reactions given, along with the associated equilibrium constant Kat room temperature. In each case, determine whether the forward or reverse reaction is favored. CH3COOH – CH3C00++ H+ Choose... Ka=1.8 x 10-5 Choose... AgCl → Agt + Cl Ksp=1.6 x 10-10 Al(OH)3 + A13+ + 30H Choose... Ksp=3.7 x 10-15 A+BAC Choose... K=4.9 x 103

Answer 1

Answer:

(a) $CH_3COOH \rightleftharpoons CH_3COO^-+ H^+$: reverse reaction is favored.

(b) $AgCl \rightleftharpoons Ag^+ + Cl^-$: reverse reaction is favored.

(c) $Al(OH)_3 \rightleftharpoons Al^{3+} + 3OH^-$: reverse reaction is favored.

(d) $A+B\rightleftharpoons C$: forward reaction is favored.

Explanation:

Hello,

(a) $CH_3COOH \rightleftharpoons CH_3COO^-+ H^+$:

In this case, since the Ka is lower than 1, we infer the reverse reaction is favored since the reactant (acetic acid) will tend to have a higher concentration.

(b) $AgCl \rightleftharpoons Ag^+ + Cl^-$:

In this case, since the Ka is lower than 1, we infer the reverse reaction is favored since the reactant (silver chloride) will tend to have a higher concentration.

(c) $Al(OH)_3 \rightleftharpoons Al^{3+} + 3OH^-$

In this case, since the Ka is lower than 1, we infer the reverse reaction is favored since the reactant (aluminium hydroxide) will tend to have a higher concentration.

(d) $A+B\rightleftharpoons C$

In this case, since the Ka is greater than 1, we infer the forward reaction is favored since the product (C) will tend to have a higher concentration.

Regards.