jasonsomenroy jasonsomenroy

13-06-2018
Chemistry

contestada

22 You have the following acids and their conjugate bases available: Acetic Acid: CH 3COOH/CH3COO-; Ka = 1.8 × 10-5 Carbonic Acid: H2CO3/HCO3-; Ka = 4.2 × 10-7 Formic Acid: HCOOH/HCOO-; Ka = 1.8 × 10-4 Hydrofluoric acid: HF/F-; Ka = 7.2 × 10-4 Which of these acid/conjugate base pairs would be the best choice for a buffer in the range of pH 4.5?

hydrofluoric acid

formic acid

acetic acid

carbonic acid

Respuesta :

sugamyers sugamyers

13-06-2018

acetic acid is the closest to 4.5 in my opinion.

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