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Before preparing the buffer solutions, you must determine the amounts of acetic acid (HC2H3O2, M.Wt.= 60.05...

Before preparing the buffer solutions, you must determine the amounts of acetic acid (HC2H3O2, M.Wt.= 60.05 g/mol) and sodium acetate (NaC2H3O2, M.Wt.= 82.03 g/mol) required. The Ka of HC2H3O2 is 1.8 X 10-5 (pKa = 4.74). Explain how you will prepare 100 mL of an HC2H3O2—NaC2H3O2 buffer starting with:

(1) 0.10 M HC2H3O2 and solid NaC2H3O2

(2) 0.30 M HC2H3O2 and solid NaC2H3O2

(3) 0.50 M HC2H3O2 and solid NaC2H3O2

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