As we saw in 22-19, as a preliminary experiment in their effort to measurethe
Chapter 22, Problem 22-20(choose chapter or problem)
As we saw in 22-19, as a preliminary experiment in their effort to measurethe dissociation constant of acetic acid, Harned and Ehlers 18 measured EOfor the cell without liquid junction shown. To complete the study and determinethe dissociation constant, these workers also measured the potential of the followingcell:where YH,O'and Ycl are the activity coefficients of hydronium ion and chlorideion, respectively, and mll,o' and mo are their respective molal (molesolute per kilogram solvent) concentrations.(b) The dissociation constant for acctic acid is given byYu/rYoAc- tnH,o' moAcK= .------ -~-.- ..-YHOAc mHOAcwhere Yo", and YIlO.',arc the activity coefficients of acetate ion and aceticacid, respectively, and mo" and mHO\' are their respective eqUilibrium
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