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9. Find the pH and the concentration in the following solutions. Also, determin a. 0.0045M phenol solution concentration of a
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Answer #1

pH = -log[H+]

pH = log 1/[H+]

● pH of 0.0045 M phenol solution

[H+] Concentration = 0.0045

pH = - log [H+]

pH = log 1/[H+]

pH = log 1/0.0045

pH = log 10000/45

pH = log 10000 - (log9×5)

pH = log 10000 - (log9 + log5)

pH = 4 - (0.954 + 0.699)

pH = 4 - 1.653

PH = 2.347

● pH of 0.0052M ammonia solution

pH = log 1/[H+]

pH = log 1/0.0052

pH = log 10000/52

pH = log 10000 - ( log13×4)

pH = log 10000 - (log13 + log 4)

pH = 4 - (1.114 + 0.602)

pH = 4 - 1.716

pH = 2.284

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