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Learning Outcomes - Exam 2
Learning Outcomes for Chemical Equilibrium
Students will be able too...
- Describe the relationship between free energy and equilibrium
- Convert ΔG to Q, as well as ΔG° to K and vice versa.
- Know the importance of the activity of a species and how it relates to concentration, pressure, and equilibrium.
- Write the mass action expression for homogeneous and heterogeneous equilibria.
- Determine new values for K when combining multiple reactions.
- Determine if a system is at equilibrium and if not which direction the reaction will shift to achieve equilibrium.
- Calculate the concentration of all species at equilibrium.
- Know the difference between Kp and Kc and be able to convert between the two.
- Set up and solve a RICE table for a multitude of various reaction types.
- Show a complete understanding of Le Chatelier's principle.
- Predict the response of a reaction to an applied stress (concentration, pressure, volume, temperature) both qualitatively and quantitatively.
- Calculate the new value of K when the temperature changes to a new value.
Learning Outcomes for Acid/Base Equilibria
Students will be able too...
- Understand the strength of an acid (or base) as determined by the percent of ionization in solution.
- Identify strong and weak acids and bases.
- Identify acid/base conjugate pairs and their relative strengths.
- Understand the process of auto-ionization of water and what is meant by acidic, basic, and neutral.
- Know the value of Kw at 25°C, and the relationship between Ka and Kb for a conjugate pair.
- Convert between hydronium ion concentration, hydroxide ion concentration, pH and pOH for a given solution.
- Determine the pH of a strong acid or base solution.
- Determine the pH of a weak acid or weak base solution.
- Determine the pH of the solution made from the salt of a weak acid or the salt of a weak base.
- Recognize and predict the components of a buffer solution.
- Calculate the pH of a buffer solution, and a buffer solution after the addition of strong acid or strong base.
- Determine the majority species for acid/base solutions as well as the pH following neutralization.
- Interpret a titration curve plot including calculating the concentration and Ka or Kb for the analyte.
- Determine the protonation state (or overall charge) for a polyprotic species at a particular pH.
- Apply concepts from equilibria to acid/base problems
Amendments Specific for Dr. McCord's Exam
Know (memorize) the value for Kw at 25°C which is 1.0 × 10-14.
Know ALL necessary formulas for answering all the questions that go with the outcomes listed above.