CAS CH 102 Study Guide - Midterm Guide: Conjugate Acid, Acid Strength, Chemical Equilibrium
15 Mar 2016
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Topics included: le-chatelier"s principle review, acid-base equilibria, buffers, solubility. Le-chatelier"s principle review: le-chatelier"s principle, an equilibrium system responds to a disturbance by offsetting the change, to determine the final equilibrium concentrations: If q > k, there is too much product responds by going to the left and creating more reactants. If q < k, there is too much reactant responds by going to the right and creating more products. Using an ice table, set up for x (change in concentration) and solve. Add or subtract x to find final concentrations: practice problem: le chatelier, the reaction 3a (aq) 2b (aq) is at equilibrium, with [a]e = 0. 10 m and [b]e = 2. 0 m. this makes k = 4000. After the system is once again at equilibrium, [a]e and [b]e must be . To return to equilibrium, some of the added a is used to make more b.
