Question- you need to prepare 100 ml of a ph 400 buffer, Chemistry

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Question- you need to prepare 100 ml of a ph 400 buffer

Question- You need to prepare 100 ml of a pH = 4.00 buffer solution using 0.100 M Benzoinc acid (pka = 4.20) and 0.120 M sodium benzoate. How much of each solution should be mixed to prepare this buffer?

1. Give ml of Benzoic Acid

2. Give ml of Sodium Benzoate

I am in hurry anyone is there provide me the answer in quick phase

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Chemistry: Question- you need to prepare 100 ml of a ph 400 buffer

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Chemistry: Question- you need to prepare 100 ml of a ph 400 buffer

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