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3) A 0.8M buffer has a pKa of 4.5 and the buffer is initially set at pH 4.5. Then 0.23M of NaOH is added to

3) A 0.8M buffer has a pKa of 4.5 and the buffer is initially set at pH 4.5. Then 0.23M of NaOH is added to the buffer. What is the final pH of the buffer?

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