Lab Lesson: Determination of Ksp of Sodium Chloride
Learning Objectives:
 Collect data in the lab to calculate molarity
 Write a dissociation equilibrium reaction
 Use ion concentrations to calculate the
NJCCCS: 5.2.12.D.5
Tech Use: none
Anticipatory Set:
 Write the dissociation equation for sodium chloride
Instructional Activities
 Students will work in pairs to complete the lab
 Students will calculate the concentration of the constituent ions of sodium chloride in a
saturated solution. Using this data, they will calculate the value of the solubility product
constant ("Ksp")
 ICE problems- after completing the lab, students will solve various equilibrium word
problems using "ICE tables."
Assessment Plan:
Lab Report
Unit 11 Test
Lesson 1: Equilibrium and LeChatelier's Principle
Learning Objectives
 Relate the magnitude of "K" to the thermodynamically favored direction of reversible
reactions
 Predict which way a reaction at equilibrium will shift when a stress (change in volume,
pressure, or concentration) is applied to it
NJCCCS: 5.2.12.D.5
Tech Use: LeChatelier Animation
Anticipatory Set:
Demo using color that demonstrates LeChatelier's Principle
Instructional Activities
 Based on prior knowledge, students will predict how the size of "K" relates to
product/reactant concentration
 LeChatelier's Principle will be defined, and the basic rules introduced.
 Animation- Based on the animation, students will arrive at the patterns in the way that
equilibrium shifts.
 Guided instruction- several examples will be done on the board as a class
 Practice in pairs- students will practice applying LeChatelier’s principle in pairs
Assessment Plan: Unit 11 Test
Lesson 2: LeChatelier's Principle (Continued) and Review
Learning Objectives
 Review the effects of various stresses on equilibrium systems.
 Review the meaning of the equilibrium constant, and how it can be calculated using ICE
tables.
NJCCCS: 5.2.12.D.5
Tech Use: none
Anticipatory Set: Review Puzzle
Instructional Activities:
 In groups of 2, students will complete a review packet that covers the topics on the test.
 Brief review game (if time permits)
Assessment Plan:
Unit 11 Test
Lesson 3: (Half Day Chem Olympics)
Learning Objectives:
 Explain the significance of equilibrium principles to the Haber process
NJCCCS: 5.2.12.D.5
Tech Use: none
Instructional Activities:
Students will read a brief article that describes how the Haber process was developed. The
article includes several principles of equilibrium and LeChatelier’s principle and is an example
of an important industrial application of chemistry. They will answer and submit questions about
the article. (from Chang Chemistry textbook)
Assessment Plan:
Answers will be collected
Day 5: Unit 11 Test