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Aspirin, C9H8O4, Slowly Decomposes at Room Temperature by Reacting with Water

question 54

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Aspirin, C9H8O4, slowly decomposes at room temperature by reacting with water in the atmosphere to produce acetic acid, HC2H3O2, and 2-hydroxybenzoic acid, C7H6O3 (this is why old bottles of aspirin often smell like vinegar):
C9H8O4 + H2O \rarr HC2H3O2 + C7H6O3

Concentration and rate data for this reaction are given below.  Aspirin, C<sub>9</sub>H<sub>8</sub>O<sub>4</sub>, slowly decomposes at room temperature by reacting with water in the atmosphere to produce acetic acid, HC<sub>2</sub>H<sub>3</sub>O<sub>2</sub>, and 2-hydroxybenzoic acid, C<sub>7</sub>H<sub>6</sub>O<sub>3</sub> (this is why old bottles of aspirin often smell like vinegar): C<sub>9</sub>H<sub>8</sub>O<sub>4</sub> + H<sub>2</sub>O  \rarr HC<sub>2</sub>H<sub>3</sub>O<sub>2</sub> + C<sub>7</sub>H<sub>6</sub>O<sub>3</sub> <sub> </sub> <sub> </sub>Concentration and rate data for this reaction are given below.   <sup> </sup>Write the rate law for this reaction and calculate k (be sure to include the correct units). Write the rate law for this reaction and calculate k (be sure to include the correct units).


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