Question: Make a buffer using 1 6 g NaOH ( MW = 4 0 g / mol ) with 3 0 0 ml H 3 PO

Make a buffer using 16g NaOH (MW=40g/mol) with 300ml H3PO41M and then dilution of the compound to V=1L. Calculate the pH.
Given: pKa1=2,12 pKa2=7,20
pKa3=12,3

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