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: Citric acid: H3C6H5O7(aq) + 3 NaOH(aq) n3 H2O(ℓ) + Na3C6H5O7(aq) Tartaric acid: H2C4H4O6(aq) + 2 NaOH(aq) n2 H2O(ℓ) + Na2C4H4O6(aq) A 0.956-g sample requires 29.1 mL of 0.513 M NaOH to consume the acid completely. What is the unknown acid?

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