Using the given data,determine ΔrG° at 298 K for the precipitation reaction below. Ag⁺(aq)+Br−(aq)→ AgBr(s) Substance ΔfG°(kJ/mol)at 298 K Br−(aq) -104.0 Ag⁺(aq) 77)12 AgBr(s) -96)9 A) -70.0 kJ/mol-rxn B) -123.8 kJ/mol-rxn C) 70.0 kJ/mol-rxn D) 123.8 kJ/mol-rxn E) 84.2 kJ/mol-rxn

Question

Quizplus · Accepted Answer

To calculate ΔrG° for the reaction, use the formula ΔrG° = ΣΔfG°(products) - ΣΔfG°(reactants). For the given reaction, ΔrG° = (-96.9) - (77.12 + (-104.0)) = -96.9 - (-26.88) = -70.0 kJ/mol-rxn.

Using the Given Data,determine ΔRG° at 298 K for the Precipitation