Oxaloacetic acid (C4H5O5, pKa1 = 2.56, pKa2 = 4.37), a diprotic acid, is part of the citric acid cycle.  What is the concentration of hydrogenoxaloacetate (C4H4O5–) in a 0.5000 M solution of sodium oxaloacetate (Na2C4H3O5)?

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Oxaloacetic acid (C4H5O5, pKa1 = 2.56, pKa2 = 4.37), a diprotic acid, is part of the citric acid cycle.  What is the concentration of hydrogenoxaloacetate (C4H4O5) in a 0.5000 M solution of sodium oxaloacetate (Na2C4H3O5)?

The image shows the structural formula for malonic acid, a simple dicarboxylic acid. The structure is as follows:

- The molecule consists of three carbon atoms in a chain.
- The first and third carbons each have a hydroxyl group (OH) and a carbonyl group (C=O), forming carboxylic acid groups (COOH) at each end.
- The central carbon is bonded to two carboxyl groups, making this compound a dicarboxylic acid.

This structure is important in organic chemistry for its role in the malonic ester synthesis and its ability to stabilize carbanions, which can be further used in synthetic applications.
Transcribed Image Text:The image shows the structural formula for malonic acid, a simple dicarboxylic acid. The structure is as follows: - The molecule consists of three carbon atoms in a chain. - The first and third carbons each have a hydroxyl group (OH) and a carbonyl group (C=O), forming carboxylic acid groups (COOH) at each end. - The central carbon is bonded to two carboxyl groups, making this compound a dicarboxylic acid. This structure is important in organic chemistry for its role in the malonic ester synthesis and its ability to stabilize carbanions, which can be further used in synthetic applications.
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