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