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Question

100 mL of 0.01 M CH3COOH and 200 mL of 0.02 M CH3COONa are mixed to form a buffer solution. 700 mL of water is added to this solution. The pH before and after dilution are:
(pKa = 4.74, log 4 =0.6)

A
5.04, 5.04
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B
5.04, 0.504
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C
5.34, 0.534
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D
5.34, 5.34
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