Barrons SAT Subject Test Chemistry, 13th Edition

have been changed or deleted.

Le Châtelier’s Principle
http://www.ausetute.com.au/lechatsp.html
This site gives an explanation of the principle. This site also provides specific
examples of how the principle can be used in different circumstances to show the
effects of changing temperature, pressure, and concentration on an equilibrium
system.

Equilibrium Equations and Constants
http://www.800mainstreet.com/7/0007-007-Equi_exp_k.html
This site offers tutorials and exercises on how to work with equilibrium equations
and constants along with exercises and answers to equilibrium problems.

PRACTICE EXERCISES

1. For the reaction A + B C + D, the equilibrium constant can be

expressed as:

2. The concentrations in an expression of the equilibrium constant are given

in

(A) mol/mL

(B) g/L

(C) gram-equivalents/L

(D) mol/L

3. In the equilibrium expression for the reaction

BaSO 4 (s) Ba2+(aq) + SO 4 2−(aq)

Ksp is equal to