Question

You are studying aspirin and its acid base properties. You find that 1.00L of a 0.500 M solution of aspirin has a pH of 1.86. You are interested in learning about the % dissociation in a buffered solution of aspirin so you make a new 1.0L solution containing 0.500moles of aspirin and 0.35 moles of the sodium salt of aspirin. What will the % disicociation be in the new buffered solution?