# Predicting pH Imagine you have a 0.125 M aqueous solution of aspirin, an acid drug with...

###### Question:

Predicting pH
Imagine you have a 0.125 M aqueous solution of aspirin, an acid drug with pKa = 3.5, in equilibrium. a) Estimate the pH of the solution Hint: Determine if it is an acid or base solution, weak or strong If weak acid/base, first try (H+) = /K,C, or [OH-] = K,C, b) Predict what would happen to the pH when you add more H2 Hint: First figure out what happens to the concentrations HA(aq) + H2O(0) A (aq) + H30+(aq) Use both kinetic and thermodynamic arguments.

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