Propionic acid, C2H5CO2H (Ka = 1.34 × × 10^−5), is used in the manufacture of calcium…

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Question “Propionic acid, C2H5CO2H (Ka = 1.34 × × 10^−5), is used in the manufacture of calcium…”

Propionic acid, C2H5CO2H (Ka = 1.34 ×

×

10^−5), is used in the manufacture of calcium propionate, a food
preservative. What is the pH of a 0.698-M solution of
C2H5CO2H?

Answer

C2H6COOH CHECOO + O.698 o 698-2 2 Kou O.698-2 C0.698-2) 1. 34X10 2 5 0.935×10 1.34X10 3.05X10 IH+] 3.05X10 pM.1o3 (3.05×10.3) PH = 1.2.52 PH

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