Unit 3: Properties of Substances and Mixtures

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  • Access is an AACT member benefit. Lesson Plan: Using Color to Identify an Unknown Mark as Favorite (16 Favorites)

    In this lesson students will utilize spectrophotometry to identify the wavelength of maximum absorbance for a food dye. They will also generate a Beer's Law Standard Curve, and utilize their skills to identify the different dyes and their concentrations in an unknown mixture. The lesson culminates with an extension to utilizing a similar method in color matching paint.

  • Access is an AACT member benefit. Lesson Plan: The Importance of Motor Oil Viscosity in Optimal Car Functioning Mark as Favorite (16 Favorites)

    In this lesson students will determine how temperature affects viscosity and relate the data to the structure of motor oil and the optimal functioning of a car.

  • Access is an AACT member benefit. Lesson Plan: Structural Isomers Mark as Favorite (17 Favorites)

    In this activity, students will use models to explore structural isomers, and create explanations for the impact of structure on intermolecular forces (London dispersion) and physical properties (boiling point).

  • Access is an AACT member benefit. Lesson Plan: Rustbusters! A Lab Activity on Corrosion Mark as Favorite (12 Favorites)

    In this lesson students learn about factors affecting the rate of corrosion and evaluate the efficiency of different protective coatings to simulate products used in industry when building metal structures like ships or bridges.

  • Access is an AACT member benefit. Lesson Plan: Not Breaking Up is Hard to Do: the Properties of Glass Mark as Favorite (18 Favorites)

    In this lesson students will learn about the properties of glass, and relate those properties to the new engineering design of glass in a car.

  • Access is an AACT member benefit. Lesson Plan: Introduction to Color Mark as Favorite (8 Favorites)

    In this lesson students explore the properties related to color and how those properties vary with changes in concentration. This lesson introduces the use of a spectrophotometer to measure wavelength and absorbance in colored solutions as well as the use of Beer’s Law to determine an unknown concentration.

  • Access is an AACT member benefit. Lesson Plan: Fuel Line Antifreeze Mark as Favorite (14 Favorites)

    In this lesson students will explore the role of a gasoline additive, fuel line antifreeze (generally methanol or 2‑propanol), in reducing the potential of water to block fuel lines in freezing weather. Students will prepare test tube models of water-contaminated fuel tanks and explore the effect of adding different types of fuel line antifreeze. This lesson can be used to bolster concepts about miscibility, density, intermolecular forces, phase changes (freezing), and colligative properties (freezing point depression).

  • Access is an AACT member benefit. Lesson Plan: Fractional Distillation of Crude Oil Mark as Favorite (26 Favorites)

    In this lesson, students will be introduced to simple distillation while expanding their knowledge of intermolecular forces. Once a simple distillation has been accomplished in the lab, students will then research the various products of fractional distillation of crude oil and report on one of those products.

  • Access is an AACT member benefit. Lesson Plan: Aspirin Synthesis and Spectroscopy Analysis Mark as Favorite (12 Favorites)

    In this lesson, students will synthesize aspirin and analyze the end product using spectroscopy by applying Beer’s Law.

  • Access is an AACT member benefit. Lab: White Lab Mark as Favorite (58 Favorites)

    In this lab, students use molarity concepts to review limiting reactant concepts mathematically, conceptually, and graphically. They can then carry out a follow up investigation to identify an unknown using concepts learned in the first investigation.

  • Access is an AACT member benefit. Lab: Physical Properties (High School) Mark as Favorite (29 Favorites)

    In this lesson, students investigate how intermolecular forces effect physical properties by investigating substances’ melting points as well as solubility.

  • Access is an AACT member benefit. Lab: Strong and Weak Electrolytes Mark as Favorite (17 Favorites)

    In this lab, students will analyze the conductivity of several common household solutions using a light emitting conductivity diode tester to determine if the solution is a strong or weak electrolyte. Students will interpret the brightness of the lightbulb to determine the strength of the electrolyte. Students will also have an opportunity to consider the connection between conductivity and bond type during this lab.

  • Access is an AACT member benefit. Lab: Determination of the Molar Mass of Butane Mark as Favorite (7 Favorites)

    In this lab, students will experimentally determine the molar mass of a gas, specifically butane (C4H10), by collection over water. This experiment is an inquiry based experiment for 2nd year chemistry or AP chemistry students who have previously collected an insoluble gas.

  • Access is an AACT member benefit. Demonstration: Intermolecular Forces & Physical Properties Mark as Favorite (70 Favorites)

    In this demonstration, students observe and compare the properties of surface tension, beading, evaporation, and miscibility for water and acetone.

  • Access is an AACT member benefit. Lab: Beer's Law Discovered Mark as Favorite (32 Favorites)

    In this laboratory investigation, students will explore the concepts of light absorption, transmittance, and the relationship between absorbance, path length, and concentration of solution.

  • Access is an AACT member benefit. Activity: Simulation Activity: Exciting Electrons Mark as Favorite (91 Favorites)

    In this simulation, students will explore what happens when electrons within a generic atom are excited from their ground state. This is a qualitative investigation, not meant to mimic any particular atom.

  • Access is an AACT member benefit. Lab: Ions in Aqueous Solution Presentation Mark as Favorite (34 Favorites)

    In this lab, students will mix ionic solutions to determine what combinations form precipitates.

  • Access is an AACT member benefit. 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.

  • Lesson Plan: Modeling Energy in Chemistry: Energy and the Electron Mark as Favorite (65 Favorites)

    This activity is designed for students to build a scientific argument about the relationship between energy and spectral lines by exploring how light interacts with atoms. In the process, students will examine proposed models of the hydrogen atom and use collected data to analyze the proposed models. They will then select one of the models and write a scientific argument to support their choice. Students will then review additional data to support and/or refute their selection. Based on their analysis, students will revise their selected model and construct a new argument to support their revisions.  

  • Access is an AACT member benefit. Lab: Ideal Gas Law Mark as Favorite (70 Favorites)

    In this lab, students use the reaction of an antacid table with water to inflate a balloon. They then use the ideal gas law to determine the number of moles of gas produced by the reaction.

  • Access is an AACT member benefit. Lesson Plan: The Downside to Catalysts - An Exploration of CFC's on the Ozone Layer Mark as Favorite (37 Favorites)

    In this lesson students will make observations of a colorful homogenous catalyst and intermediate in a reaction demonstration that will spark their interests. They will then work in teams to analyze graphs and data sets in order to make a real-world connection to AP topics in kinetics such as catalysts, intermediates and reaction mechanisms by exploring how CFCs work to break down the ozone layer. Students will also investigate and discuss this environmental issue.

  • Access is an AACT member benefit. Lesson Plan: Intermolecular Forces Review Mark as Favorite (24 Favorites)

    In this lesson plan, students will review concepts of intermolecular forces.

  • Access is an AACT member benefit. 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. 

  • Access is an AACT member benefit. Lesson Plan: An Exploration of Intermolecular Forces Mark as Favorite (57 Favorites)

    In this lesson students will explore intermolecular forces, and their associated effect on physical and chemical properties. Students will experiment with volatile liquids to investigate their predictions about intermolecular strength.

  • Access is an AACT member benefit. Lab: Carbonate Identification Mark as Favorite (34 Favorites)

    In this lab students use gas laws and stoichiometry, along with some balloons and simple measuring tools, to identify a metal carbonate from a short list of possibilities.

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