Given That ΔH°f [Ag2S(s)] = -32

question 97

Multiple Choice

Given that ΔH°f [Ag2S(s) ] = -32.6 kJ/mole, what is the enthalpy change for the precipitation of argentite, Ag2S(s) ? ΔH°f [Ag+(aq) ] = +105.6 kJ/mol
ΔH°f [S2-(aq) ] = +33.05 kJ/mol

• A) -276.9 kJ/mol
• B) -106.1 kJ/mol
• C) +171.2 kJ/mol
• D) +106.1 kJ/mol
• E) +138.7 kJ/mol

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