Applying Concepts
These questions test conceptual learning.
A solid sample of benzoic acid, a carboxylic acid, is in equilibrium with an aqueous solution of benzoic acid. A tiny quantity of D2O, water containing the isotope 2H, deuterium, is added to the solution. The solution is allowed to stand at constant temperature for several hours, after which some of the solid benzoic acid is removed and analyzed. The benzoic acid is found to contain a tiny quantity of deuterium, D, and the formula of the deuteriumcontaining molecules is C6H5COOD. Explain how this can happen.
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