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Question
An acid-base equilibrium system is created by dissolving 0.50 mol CH3CO2H in water to a volume of 1.0 L. What is the effect of adding 0.50 mol CH3CO2-(aq) to this solution?
1/ The pH of the solution will equal 7.00 because equal concentrations of a weak acid and its conjugate base are present.
2/ Some CH3CO2H(aq) will ionize, increasing the concentration of CH3CO2-(aq) and increasing the pH.
3/ Some CH3CO2-(aq) will react with H3O+, increasing the concentration of CH3CO2H(aq) and reestablishing the solution equilibrium.
A.1 only
B.2 only
C.3 only
D.1 and 3
E.1, 2, and 3
Answer
This answer is hidden. It contains 2 characters.
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