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Determine the pH of each of the following solutions. (a) 0.113 M ascorbic acid (weak acid...

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Chemistry

Determine the pH of each of the following solutions.



(a) 0.113 M ascorbic acid (weak acid with Ka =8e-05).





(b) 0.261 M phenol (weak acid with Ka = 1.3e-10).





(c) 0.150 M pyridine (weak base with Kb =1.7e-09).

Answer & Explanation Solved by verified expert
3.7 Ratings (392 Votes)
a Ka 80 105 and c 0113M For weak acids the relation for pH can be given as pH 12pKa logc 1 Where in this case pKa of ascorbic acid logKa log80 x 105 pKa 409 pKa    See Answer
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