A buffer prepared by dissolving oxalic acid dihydrate (H₂C₂O4 · 2 H₂O) and disodium oxalate (Na₂C₂O₂) in 1.00 L of water
Posted: Sat Jul 02, 2022 8:43 pm
- A Buffer Prepared By Dissolving Oxalic Acid Dihydrate H C O4 2 H O And Disodium Oxalate Na C O In 1 00 L Of Water 1 (76.84 KiB) Viewed 21 times
A buffer prepared by dissolving oxalic acid dihydrate (H₂C₂O4 · 2 H₂O) and disodium oxalate (Na₂C₂O₂) in 1.00 L of water has 2 a pH of 5.193. 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 0.212 M? Oxalic acid has pKą values of 1.250 (pKal) and 4.266 (pK₂2). mass of H₂C₂O4.2H₂O = mass of Na₂C₂O4 = 6.0 g 6.0 g