Consider the reaction of 25.0 mL of 0.20 M AgNO₃(aq) with 25.0 mL of 0.20 M NaBr(aq) to form AgBr(s) at 25°C. What is ΔG for this reaction? The Ksp of AgBr is 5.0 x 10^-13 at 25°C. A) -58.8 kJ/mol B) -70.2 kJ/mol C) +58.8 kJ/mol D) +70.2 kJ/mol

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Quizplus · Accepted Answer

The reaction quotient Q is much larger than Ksp, indicating the reaction will proceed to form AgBr(s). ΔG can be calculated using ΔG = -RTln(K), where K is the equilibrium constant (1/Ksp for precipitation reactions). This results in a negative ΔG, indicating a spontaneous reaction.

Consider the Reaction of 25