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Given CH3CO2H(aq) H+(aq)+ CH3CO2-(aq)at 25°C,Ka = 1 ×\times 10-5 Δ\Delta G at 25°C for a Solution in Which the Initial

Question 104

Multiple Choice

Given CH3CO2H(aq)  Given CH<sub>3</sub>CO<sub>2</sub>H(aq)    H<sup>+</sup>(aq) + CH<sub>3</sub>CO<sub>2</sub><sup>-</sup>(aq) at 25°C,K<sub>a</sub> = 1.75  \times 10<sup>-</sup><sup>5</sup>.What is  \Delta G at 25°C for a solution in which the initial concentrations are: [CH<sub>3</sub>CO<sub>2</sub>H]<sub>0</sub> = 0.10 M [H<sup>+</sup>]<sub>0</sub> = 4.8  \times  10<sup>-</sup><sup>8</sup> M [CH<sub>3</sub>CO<sub>2</sub><sup>-</sup>]<sub>0</sub> = 0.010 M A) -74.6 kJ B) 74.6 kJ C) 20.3 kJ D) -20.3 kJ E) 27.1 kJ H+(aq) + CH3CO2-(aq) at 25°C,Ka = 1.75 ×\times 10-5.What is Δ\Delta G at 25°C for a solution in which the initial concentrations are: [CH3CO2H]0 = 0.10 M
[H+]0 = 4.8 ×\times 10-8 M
[CH3CO2-]0 = 0.010 M


A) -74.6 kJ
B) 74.6 kJ
C) 20.3 kJ
D) -20.3 kJ
E) 27.1 kJ

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