Problem: Calculate the equilibrium concentration of C2O42− in a 0.20 M solution of oxalic acid.Express your answer to two significant figures and include the appropriate units.

🤓 Based on our data, we think this question is relevant for Professor Davis' class at UCF.

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FREE Expert Solution

We are being asked to determine the equilibrium concentration of C­2O42- in a solution of 0.20 M oxalic acid. 

We will need the equilibrium constant for oxalic acid and construct an ICE chart to determine the equilibrium concentrations of the C2O42-.


Oxalic acid → H2C2O4

can donate two protons (H+) → diprotic acid

two equilibrium equations → two equilibrium constants

Equilibrium constants (Ka) can be found in books or on the internet

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Problem Details

Calculate the equilibrium concentration of C2O42− in a 0.20 M solution of oxalic acid.

Express your answer to two significant figures and include the appropriate units.

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What scientific concept do you need to know in order to solve this problem?

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

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What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Davis' class at UCF.