Student Learning Outcomes

• By using the concept of Le Chatelier’s Principle, students will be able to a. predict the effect that causes the reaction to shift toward products in a gas phase reaction initially at equilibrium. b. predict the correct effect of different stresses on a gas phase reaction at equilibrium c. predict the correct effect of adding a substance that reacts with a component in the equilibrium system of a slightly soluble salt that was used in the “Review of Equilibrium Systems” experiment d. predict the correct effect (by color of solution) from adding common ion in the aqueous phase equilibrium system used in the “Review of Equilibrium Systems” experiment e. predict the correct effect (by color of solution) from adding a substance that reacts with a component in the equilibrium system used in the “Review of Equilibrium Systems” experiment. The questions focused on determining the direction of shift of a reaction upon adding a variety of stresses to a system at equilibrium. Some of the questions related directly to experiences that they had in several lab experiments.
• Chem 51 students will be able to a. Define and identify a buffer solution b. Determine the pH of a buffer solution c. Predict the change in pH of a buffer solution upon addition of a strong acid or base d. Determine the chemical quantitates needed in order to prepare a buffer solution of given pH and acid or base concentration
• Chem 51 students will be able to a. examine and predict the effect of common ions on an aqueous equilibrium system b. examine and predict the effect of common ions on an aqueous equilibrium system as applied to the Solubility Procudt Constant (Ksp) Experiment c. predicting degree of solubility based on solubility product constants d. calculating the value of the solubility of a solution containing a common ion The questions focused on determination of solubility, understanding the concept of Ksp, and the effects of the common ion effect on solubility. Some of the questions related directly to experiences that they had in several lab experiments.
• SLO on Buffers focused on the following course measurable objective: Prepare buffer solutions of a given pH and molarity and predict the response of the buffers to additions of acids and bases. Outcomes (SLO statement): Chem 51 students will be able to: a. Define and identify a buffer solution b. Determine the pH of a buffer solution c. Predict the change in pH of a buffer solution upon addition of a strong acid or base d. Determine the chemical quantities needed in order to prepare a buffer solution of given pH and acid or base concentration
• Outcomes (SLO statement): Chem 51 students will be able to: a. Define and identify a buffer solution b. Determine the pH of a buffer solution c. Predict the change in pH of a buffer solution upon addition of a strong acid or base d. Determine the chemical quantities needed in order to prepare a buffer solution of given pH and acid or base concentration