An unknown solid acid is either citric acid or tartaric acid. To determine which acid you have, you titrate a sample of the solid with aqueous NaOH and from this determine the molar mass of the unknown acid. The appropriate equations are as follows:

Transcribed Image Text:

Citric acid: H3CH₂O₂(aq) + 3 NaOH(aq) - 3 H₂O(l) + Na3C,H,O,(aq) Tartaric acid: H₂C4H₂O(aq) + 2 NaOH(aq) → 2 H₂O(l) + Na₂C4H₂O6(aq)