Asked by Owen

A buffer prepared by dissolving oxalic acid dihydrate (H2C2O4·2H2O) and disodium oxalate (Na2C2O4) in 1.00 L of water has a pH of 5.007. How many grams of oxalic acid dihydrate (MW = 126.07 g/mol) and disodium oxalate (MW = 133.99 g/mol) were required to prepare this buffer if the total oxalate concentration is 0.116 M? Oxalic acid has pKa values of 1.250 (pKa1) and 4.266 (pKa2).
Answered by Jizka
do the mplarity and the moles * mass = velocity