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What is the pH after 0.050 mol NaOH is added to 1.00 L of a buffer...

What is the pH after 0.050 mol NaOH is added to 1.00 L of a buffer that is 0.550 M (CH3)3N and 0.550 M (CH3)3NHCl? Kb= 7.4 x 10^-5

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pH after 0.050 mol NaOH = 9.95

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