# Problem: Consider the following Gibbs energies at 25 °C.Substance                           ΔG°f (kJ•mol-1)Ag+(aq)                                    77.1Cl-(aq)                                     -131.2AgCl(s)                                    -109.8Br-(aq)                                     -104.0AgBr(s)                                    -96.9a) Calculate ΔG°rxn for the dissolution of AgCl(s)._____ kJ•mol-1b) Calculate the solubility-product constant of AgCl.K = _____

###### FREE Expert Solution

Dissolution of AgCl(s): AgCl(s) ⇌ Ag+(aq) + Cl(aq)

a) Recall:

Given:

Ag+(aq) = 77.1 kJ/mol

Cl(aq) =  –131.2 kJ/mol

AgCl(s) =  –109.8 kJ/mol

89% (345 ratings) ###### Problem Details

Consider the following Gibbs energies at 25 °C.

Substance                           ΔG°(kJ•mol-1)

Ag+(aq)                                    77.1

Cl-(aq)                                     -131.2

AgCl(s)                                    -109.8

Br-(aq)                                     -104.0

AgBr(s)                                    -96.9

a) Calculate ΔG°rxn for the dissolution of AgCl(s).

_____ kJ•mol-1

b) Calculate the solubility-product constant of AgCl.

K = _____