AP® Chemistry Weak Acid Equilibrium Questions
Here, we’ll look at some common weak acid equilibrium problems. For more resources, check out tdwscience.com/apchem
Equilibrium questions are some of the most common problems to show up in the free response section of the AP Chemistry text. These weak acid equilibrium problems involve calculating the Ka or acid dissociation constant, and then completing an ICE table, to determine the initial, change, and equilibrium concentrations of the acid and the conjugate base. We then use the Henderson Hasselbalch equation to solve for the concentration of buffer components. This is a calculation that involves the pH as well as the pKa. This buffer solution was made by mixing a weak acid (formic acid) with the sodium salt of its conjugate base.
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