What is the ph change of citric acid

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Question- What is the pH change of a 0.300M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.155M with no change in volume?

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What is the ph change of citric acid : Question- What is the pH change of a 0.300M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.155M with no change in volume
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