1 answer

What is the pH of a 0.28 M solution of sodium propionate, NaC3H5O2, at 25°C? (propionic...

Question:

What is the pH of a 0.28 M solution of sodium propionate, NaC3H5O2, at 25°C? (propionic acid, HC3H502, is monoprotic and has

What is the pH of a 0.28 M solution of sodium propionate, NaC3H5O2, at 25°C? (propionic acid, HC3H502, is monoprotic and has a Ka = 1.3 x 10-5 at 25°C.. Kw = 1.01 x 10-14)

Answers

ka = 1.3x10 Кухк, в к -lo = 1, 64 x 10 1x to 19 ЭК, - Kw = (х 10 К ). 3xo 5 C2H50, + 10 = Cзно, t он- = K, = [GH 0,5 (он 1 LCa = 1.467 X105 [OH-] = 1.461 x 105 M → þOH = -log [OH-] = 4.83 = 9.17 14-4.83 So = pH = 14- poH pH= 9.17

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