pH of 0.2 M sodium phenoxide solution will be (pKa of phenol = 9.95)
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Answer:
pH = 11.625
Explanation:
The formula for finding the pH of a solution given the molarity of the solution and its pKa is given as
pH = 7 + 1/2 (pKa + log M)
Here M is the molarity of the solution.
Now as per information given in question statement
pKa = 9.95
M = 0.2
Putting the values in the formula;
pH = 7 + 1/2 (9.95 + log 0.2)
pH = 7 + 1/2 (9.95 - 0.69)
pH = 7 + 1/2 (9.25)
pH = 11.625
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