Using the information provided below for a solution containing acetic acid and acetate, what is the molar ratio of the b

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Using The Information Provided Below For A Solution Containing Acetic Acid And Acetate What Is The Molar Ratio Of The B 1 (64.28 KiB) Viewed 26 times

Using the information provided below for a solution containing acetic acid and acetate, what is the molar ratio of the base form (acetate) to the acid form (acetic acid)? (or, equivalently, [Ac-/[HAC); or (B]/[A], where B refers to the base form and A refers to the acid form). Report your result to the hundredths place. • Solution preparation and conditions: A solution prepared by adding 16.40 g sodium acetate to water, along with other chemicals to control pH. The volume of the final mixture is 1.00L. All components fully dissolve and the pH of the final mixture is 5.25. (Note: this is similar to problem 2-13, p.88; also see example 2-12, p.58) • Info: Acid dissociation reaction: HAc(aq) = H+(aq) + Ac-(aq), where HAC is acetic acid and Ac- is acetate (the base form); assume that this is the only significant reaction for acetic acid and acetate. Use 4.75 as the pka for acetic acid at 25C. o Molar masses: HAC, 60.05; sodium acetate (NaAc), 82.03