07 December 2018 2 9K Report

I need to prepare a 0.005 M buffer of potassium dihydrogen phosphate with a pH of 3.5 for the determination of ascorbic acid in fruit juices using HPLC-UV. If I dissolve 6.8 g of KH2PO4 (molecular weight = 136.09) in destilled water until 100 mL in a volumetric flask, ¿would it be enough to reach pH 3.5?

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