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A 0.145M solution of a weak base is titrated with a 0.145MHCl solution. After the addition of 10.50mL of the HCl solution to 25.00mL of

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A 0.145M solution of a weak base is titrated with a 0.145MHCl solution. After the addition of 10.50mL of the HCl solution to 25.00mL of the weak base solution, the pH of the solution is 8.81. Determine the pKb of the weak base

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