V3 3.Composition of acetic acid solutionFor acetic acid in aqueous solution at 298 K the dissociation reaction isCH3COOH(aq) + H20(l) = CH3C00 (aq) + H30*(aq)With pka = 4.75.To simplify calculations, denote a = [CH3COOH], b=[CH3COO] and x = [H3O*].Consider a solution of total concentrationc = 0.1 M.Use the two equations:bxаnd a + b %3D саa.Solve for a as a function of Ka, c and x, then for b use b = c- a.b.Write an equation the fractional population of the acid fa, in terms of K and x, bysubstituting results of point a below:fa =wwwа||%3Da+bOf course, fb = b/c = 1– fa.%3DC.Make an Excel plot of fa vs. pH and fb vs. pH.Use this plot to explain the chemical meaning of the value of pka.

Given reaction: CH3COOH (aq) + H2O (l) ⇌ CH3COO- (aq) + H3O+ (aq) pKa = 4.75 pKa = - log [Ka] 4.75 =…

For acetic acid in aqueous solution at 298 K the dissociation reaction is CH-C0ОН (аq) + H,0() = CH3C00¯(aq)+ H30*(aq) With pka = 4.75. %3D To simplify calculations, denote a = [CH3COOH], b=[CH3COO] and x = Consider a solution of total concentration c= 0.1 M. [H3O*]. %3D Use the two equations: bx Ka аnd a +b %3с a a.Solve for a as a function of Ka, c and x, then for b use b = c-a. b.Write an equation the fractional population of the acid fa, in terms of K and x, by substituting results of point a below: fa = %3D a a+b Of course, fb = b/c = 1– fa.

For acetic acid in aqueous solution at 298 K the dissociation reaction is CH-C0ОН (аq) + H,0() = CH3C00¯(aq)+ H30(aq) With pka = 4.75. %3D To simplify calculations, denote a = [CH3COOH], b=[CH3COO] and x = Consider a solution of total concentration c= 0.1 M. [H3O]. %3D Use the two equations: bx Ka аnd a +b %3с a a.Solve for a as a function of Ka, c and x, then for b use b = c-a. b.Write an equation the fractional population of the acid fa, in terms of K and x, by substituting results of point a below: fa = %3D a a+b Of course, fb = b/c = 1– fa.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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