A) From the ionization constant, calculate the standard Gibbs free-energy change for the ionization of acetic acid in water at 25∘. Ka=1.80×10−5
Express your answer using three significant figures.
ΔrG0 = ____ kJ/mol
B) What is the Gibbs free-energy change at equilibrium for the ionization of acetic acid in water at 25∘C?
Express your answer using three significant figures.
ΔrG = _____ kJ/mol
C) What is the Gibbs free-energy change for the following reaction in water at 25∘C ? Note that this reaction is the inverse of the dissociation reaction of part A.
H+ (10−4M) +OAc− (10−2M) →HOAc (1M)
Express your answer using three significant figures.
ΔrG = ______ kJ/mol
D) What is the Gibbs free-energy change for the following reaction in water at 25∘C ?
H+ (10−4M) +OAc− (10−2M) →HOAc (10−5M)
Express your answer using three significant figures.
ΔrG = ______ kJ/mol

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