A buffer prepared by dissolving oxalic acid dihydrate (H,C,0, · 2 H,0) and disodium oxalate (Na, C,0,) in 1.00 L of water has a pH of 4.534. 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 0.128 M? Oxalic acid has pK, values of 1.250 (pKal) and 4.266 (pKa2).

A buffer prepared by dissolving oxalic acid dihydrate (H,C,0, · 2 H,0) and disodium oxalate (Na, C,0,) in 1.00 L of water has a pH of 4.534. 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 0.128 M? Oxalic acid has pK, values of 1.250 (pKal) and 4.266 (pKa2).

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter15: Additional Aqueous Equilibria

Section: Chapter Questions

Problem 93QRT: When 40.00 mL of a weak monoprotic acid solution is titrated with 0.100-M NaOH, the equivalence...

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