Problem: For the following polyprotic acid questions: Citric acid (H3C6H5O6)          K a1 = 8.4 x 10–4            K a2 = 1.8 x 10–5            K a3 = 4.0 x 10–6 Oxalic acid (H2C2O4)             K a1 = 6.5 x 10–2            K a2 = 6.1 x 10–5Sketch a titration curve of the complete titration oxalic acid with NaOH. Label the important points on the curve and list the dominant species present at each of these points.

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Problem Details

For the following polyprotic acid questions: 

Citric acid (H3C6H5O6)          K a1 = 8.4 x 10–4            K a2 = 1.8 x 10–5            K a3 = 4.0 x 10–6 
Oxalic acid (H2C2O4)             K a1 = 6.5 x 10–2            K a2 = 6.1 x 10–5

Sketch a titration curve of the complete titration oxalic acid with NaOH. Label the important points on the curve and list the dominant species present at each of these points.

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Our tutors have indicated that to solve this problem you will need to apply the Titrations of Diprotic and Polyprotic Acids concept. You can view video lessons to learn Titrations of Diprotic and Polyprotic Acids. Or if you need more Titrations of Diprotic and Polyprotic Acids practice, you can also practice Titrations of Diprotic and Polyprotic Acids practice problems.

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Based on our data, we think this problem is relevant for Professor Kobko-Litskevitch's class at HUNTER.