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A buffer contains 0.010 mol of lactic acid (pKa = 3.86) and 0.050 mol of sodium lactate per litre. Calculate the pH of the buffer.

A buffer contains 0.010 mol of lactic acid (pKa = 3.86) and 0.050 mol of sodium lactate per litre. Calculate the pH of the buffer.

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4.6

8.3

4.1

6.4

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