Lactic acid CH3CH(OH)COOH is a weak monoprotic acid (Ka=1.4*10^-4). Calculate the pH of a 0.20 mol dm^-3 solution of lactic acid and the percent ionization.
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Lactic acid (CH3CH(OH)COOH) ionizes in water to form hydronium ions (H3O+) and lactate ions (CH3CH(OH)COO-). The ionization equation is: \[ \text{CH}_3\text{CH(OH)COOH} \rightleftharpoons \text{H}_3\text{O}^+ + \text{CH}_3\text{CH(OH)COO}^- \] Show more…
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