1 – 23 of 23 Classroom Resources

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  Lesson Plan: Q, K, and Le Châtelier Mark as Favorite (16 Favorites)

  In this lesson students practice applying Q vs K as an explanatory tool in a simulation and demonstration. In both activities, students will consider how a change in concentration of one species subsequently effects all the species as equilibrium is reestablished.

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  Activity: How do Pollutants Affect our Oceans? Mark as Favorite (35 Favorites)

  In this activity, students will use the simulation, Surface Ocean pH Levels, from the Chemistry in Context Simulation Suite to investigate the values related to ocean acidification and interpret systems with multiple equilibria.

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  Lab: A Greener Le Châtelier’s Principle Lab Mark as Favorite (59 Favorites)

  In this lab, students will explore Le Châtelier’s Principle using non-toxic materials, while still visualizing the equilibrium shifts through color changes. Traditionally, equilibrium experiments and Le Châtelier’s Principle are illustrated using chemicals that undergo color changes as the equilibrium position shifts such as cobalt (IV) chloride and iron (III) thiocyanate. While these reactions effectively demonstrate Le Châtelier’s Principle, they utilize reagents that are toxic.

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  Demonstration: Le Châtelier’s Principle Mark as Favorite (32 Favorites)

  In this demonstration, students will witness a system at equilibrium and apply different stresses to see how the equilibrium shifts.

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  Lesson Plan: Making Connections in Kinetics, Equilibrium and Thermochemistry Mark as Favorite (31 Favorites)

  In this lesson students will understand the connections between the equilibrium constant (K) and the reaction quotient (Q) as well as how they determine the favorability of a reaction. Additionally students will be able to determine if a reaction is kinetically favored or thermodynamically favored.

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  Activity: Simulation Activity: Predicting Shifts in Equilibrium: Q vs K Mark as Favorite (32 Favorites)

  In this simulation, students will take a 15 question quiz. Each quiz questions has two parts. The first part requires the student to calculate the value of the reaction quotient, Q. In the second portion of the question, the students will compare the value of Q to the equilibrium constant, K, and predict which way the reaction will shift to reach equilibrium. The simulation includes five different reactions which each have three scenarios: Q > K, Q = K, and Q < K.

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  Activity: Shaking Dice to Model Equilibrium Principles Mark as Favorite (23 Favorites)

  In this activity, students work together in small groups using a variety of multi-sided dice to model the dynamic character of a chemical equilibrium. Students will collect, share and analyze data in order to understand that the rate of a chemical reaction depends on the concentration of reactants (and products) as modelled by the different sided dice.

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  Activity: Le Châtelier's Principle Particulate View Mark as Favorite (19 Favorites)

  In this activity, students will gain a better understanding of how applying a stress to a reaction system will shift the equilibrium. The students will be able to predict the direction a reversible reaction will shift based of the value of the reaction quotient (Q) and the equilibrium constant (K). This activity should be completed after students have completed the activity “Equilibrium Particulate View.”

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  Lesson Plan: Discovering Equilibrium Mark as Favorite (29 Favorites)

  In this lesson students manipulate sets of given conditions to discover what equilibrium is, and how the equilibrium is established from different starting conditions. Students then refer back to the activity as the foundation framework for the rest of Essential Knowledge 6.A, 6.B.1 and 6.B.2. This lesson focuses on both a qualitative and quantitative understanding of equilibrium.

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  Activity: Equilibrium Particulate View Mark as Favorite (20 Favorites)

  In this activity, students will gain a better understanding of what it means for a reaction to be in a state of equilibrium and how a reaction progresses over time to establish equilibrium. Students will also relate the equilibrium constant to the amount of products and reactants present at equilibrium.

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  Activity: Equilibrium Introduction Mark as Favorite (29 Favorites)

  In this activity, students perform a hands-on activity that models chemical equilibrium based on the article Equilibrium: A Teaching/Learning Activity by Audrey H. Wilson from the Journal of Chemical Education, Vol. 75, No. 9, September 1998.

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  Activity: Equilibrium in a Beaker Mark as Favorite (70 Favorites)

  In this activity, students will model equilibrium reactions using plastic chips to represent atoms. The goal of the lesson is to connect the symbolic model of an equilibrium reaction to its particle model.

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  Lab: Le Chatelier’s Soda Mark as Favorite (90 Favorites)

  In this lab, students will observe how the equilibrium of a chemical reaction is affected when a change in pressure, temperature, and concentration is applied to the system.

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  Lab: Dynamic Equilibrium Simulation Mark as Favorite (34 Favorites)

  In this lab, students will explore equilibrium using paper clips to mimic a chemical reaction.

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  Demonstration: Le Châtelier’s Principle and Shifting Equilibrium Mark as Favorite (6 Favorites)

  In this demonstration, students will be introduced to the concepts of Le Châtelier’s Principle and reversible reactions through the formation of a copper-ammonia complex ion.

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  Lab: Kinetics and Equilibrium Mark as Favorite (28 Favorites)

  In this lab, students will investigate the reaction of the hydrogen sulfite ion (HSO3-) and the iodate ion (IO3-) to determine the effect that changing concentration and temperature has on the reaction rate.

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  Activity: Reversible Reactions Simulation Mark as Favorite (40 Favorites)

  In this activity, students will investigate how temperature, activation energy, initial amounts of products and reactants, and type of reaction (exo- or endothermic) effect the equilibrium position of a reaction using a simulation.

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  Lesson Plan: Categorizing, Calculating and Applying Concepts from Weak Acids, Weak Bases and Salts Mark as Favorite (58 Favorites)

  In this lesson students will write dissociation reactions to make connections between conjugate acid-base pairs. They will use beaker diagrams in a cooperative group activity to better understand why the pH calculation for a weak acid/base is not the same for a strong acid/base. Finally, students will apply these concepts in a lab in which they will identify several unknown, clear, colorless solutions using factors such as pH, conductivity and reactivity. The activities in this lesson can be used in sequence or as standalone activities.

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  Lab: Experimental Determination of the Solubility Product Constant for Calcium Hydroxide Mark as Favorite (3 Favorites)

  In this lab, students will predict and measure the relationship between the conductivity of a solution of calcium hydroxide and the mass of substance added to it. From the relationship, students will determine solubility and Ksp of calcium hydroxide. Ksp will be calculated using the molar concentration of ions in the solution and the equilibrium expression for the dissociation of calcium hydroxide.

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  Lesson Plan: AP Chemistry Experimental Evidence Review Mark as Favorite (47 Favorites)

  In this lesson, students will evaluate data from 16 simulated lab experiments that were designed to mirror the Recommended Labs from the College Board. Corresponding lab experiments and demonstration options have also been included for teacher reference.

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  Lesson Plan: AP Chemistry Big Idea Review Mark as Favorite (126 Favorites)

  In this lesson, students will complete a review of all of the AP Chemistry Big Ideas and Learning Objectives using questions targeting each learning objective. This lesson is based on the AACT AP Chemistry Webinar series: What’s the Big Idea? Last Minute AP Chem Review and What’s the Big Idea? AP Chemistry Review Redux. 

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  Animation: Equilibrium Animation Mark as Favorite (19 Favorites)

  This animation explores equilibrium through the examples of water and a piece of chalk (CaCO3). Students will see the relationship of H+ and OH– with water molecules, as well as the autoionization of water. They will also see that once equilibrium is established, there is no net change in the ions in solution, as when one set of particles dissolves, another set of particles will recombine. **This video has no audio**

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  Simulation: Predicting Shifts in Equilibrium: Q vs K Mark as Favorite (36 Favorites)

  In this simulation, students will take a 15 question quiz. Each quiz question has two parts. The first part requires the student to calculate the value of the reaction quotient, Q. In the second portion of the question, the students will compare the value of Q to the equilibrium constant, K, and predict which way the reaction will shift to reach equilibrium. The simulation includes five different reactions which each have three scenarios: Q > K, Q = K, and Q < K.