Classroom Resources: Solutions

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1 – 25 of 170 Classroom Resources

  • Acid & Base Theories, Strong vs Weak, Indicators, Titrations, Buffers, Concentration, Molarity, Net Ionic Equation | High School

    Lesson Plan: Acids and Bases Unit Plan Mark as Favorite (60 Favorites)

    The AACT high school classroom resource library and multimedia collection has everything you need to put together a unit plan for your classroom: lessons, activities, labs, projects, videos, simulations, and animations. We constructed a unit plan using AACT resources that is designed to teach the topic of acids and bases to your students.

  • Precipitate, Solubility, Solubility Rules, Net Ionic Equation, Balancing Equations, Chemical Change, Predicting Products, Chemical Bond, Intramolecular Forces, Intermolecular Forces, Ionic Bonding, Chemical Change, Physical Change | High School

    Access is an AACT member benefit. Lesson Plan: Inquiry Introduction to Precipitation Reactions Mark as Favorite (2 Favorites)

    In this lesson, students will work with a partner through a guided inquiry activity that will introduce, teach, and “solidify” the concept of precipitation reactions. In this multi-part lesson, students will review chemical and physical changes, identify spectator ions, perform small-scale precipitation reactions, view simulation-based heavy metal precipitation reactions, and identify a likely precipitate when combining two solutions. Students will also be introduced to writing net ionic equations.

  • Precipitate, Solubility, Solubility Rules, Molecules & Bonding, Ionic Bonding, Naming Compounds | High School

    Game: Precipitation Reactions Game Mark as Favorite (18 Favorites)

    In this game, students explore the concepts of solubility and precipitation reactions. The game contains three difficulty levels – introductory, standard, and mastery. Bonus questions include naming compounds and identifying spectator ions.

  • Concentration, Solute & Solvent, Solubility | High School

    Access is an AACT member benefit. Demonstration: Saturated Solutions: An Engagement Activity Mark as Favorite (21 Favorites)

    In this demonstration, students will observe salt dissolving in water and participate in a think-pair-share activity using teacher-led questions. It is intended to be an introduction to solutions, particularly saturation.

  • Solute & Solvent, Mixtures | Elementary School

    Access is an AACT member benefit. Demonstration: Introduction to Solutions Mark as Favorite (5 Favorites)

    In this demonstration, students will recognize that there is a threshold for the amount of salt that can be dissolved into a specified amount of water. Students will be asked to make observations about two different salt water samples to determine if a sample that contains undissolved salt is still considered a solution. The saltiness, or salinity, of the water samples will be used to help students make connections about how the melting of polar ice caps is changing the average salinity of the ocean.

  • Freezing Point, Solubility, Solute & Solvent, Phase Changes, Freezing Point Depression, Physical Change, Physical Properties | Elementary School, Middle School

    Access is an AACT member benefit. Lesson Plan: Salting Roads in Winter Mark as Favorite (3 Favorites)

    In this lesson, students investigate how the freezing point of water changes when salt is added. Many students know that water freezes at 0°C, and many believe that all substances freeze at 0°C. The investigations in this lesson help students understand why salt is spread on roads in cold and snowy conditions.

  • Freezing Point, Phase Changes, Mixtures | Elementary School

    Lab: Coffee Creamer Ice Cream Mark as Favorite (13 Favorites)

    In this lab, students will investigate how dissolving salt (sodium chloride) in water changes the freezing point of the solution. While investigating this, they will make ice cream from small coffee creamer cups.

  • Physical Properties, Covalent Bonding, Electronegativity, Polarity, Molecular Geometry, Intermolecular Forces, Solubility | Middle School, High School

    Access is an AACT member benefit. Activity: The Chemistry of Water Video Questions Mark as Favorite (48 Favorites)

    In this activity, students will watch a video and answer questions about how the molecular geometry and polarity of water give rise to many of its unusual physical properties, including its relatively high boiling point and its ability to dissolve some substances but not others.

  • Conductivity, Observations, Electricity | Middle School

    Access is an AACT member benefit. Demonstration: Getting Charged Mark as Favorite (0 Favorites)

    In this demonstration, students will make predictions and then observe how conductivity is measured in several electrolyte and nonelectrolyte solutions. A short discussion about electrolytes, ions, ionic compounds, and galvanic cells will follow.

  • Precipitate, Solubility, Solubility Rules, Ionic Bonding, Naming Compounds | High School

    Access is an AACT member benefit. Activity: Game Activity: Precipitation Reactions Game Mark as Favorite (16 Favorites)

    In this game, students will explore the concepts of solubility and precipitation reactions. The game contains three difficulty levels – introductory, standard, and mastery – in which students will have to fulfill specific victory conditions for a series of scenarios. Victory conditions include selecting compounds to form a particular precipitate, using the proper ratio of reactants, and correctly identifying what precipitate will form from a collection of ions using a solubility chart. Bonus questions include naming compounds and identifying spectator ions.

  • Chemical Change, Mixtures, Reaction Rate | Elementary School

    Access is an AACT member benefit. Lab: The Disappearing Color Mark as Favorite (5 Favorites)

    In this lab, students will create a solution to observe a chemical change between food coloring in water and bleach. They will also develop the process skills of predicting, observing, and measuring temperature.

  • Equilibrium Constants, Le Châtelier's Principle, Gibb's Free Energy , Enthalpy, Entropy, Solubility | High School

    Access is an AACT member benefit. Lesson Plan: Relationship Between Free Energy and the Equilibrium Constant Mark as Favorite (17 Favorites)

    In this lesson, students will explore the relationships between solubility and Keq (specifically Ksp), as well as Keq and ΔG°. First, a guided inquiry activity will introduce the relationship between standard free energy and equilibrium constant with the equation ΔG° = -RTlnKeq. Then data collection regarding solubility of potassium nitrate at various temperatures will lead to the calculation of Ksp and ΔGo for the dissolution reaction at those temperatures. Students will manipulate the equations ΔG° = -RTlnKeq and ΔG° = ΔH° - TΔS° to derive a linear relationship between 1/T and lnKeq, which will then be graphed to determine values for ΔH° and ΔS°.

  • Galvanic Cells, Reduction Potentials, Redox Reaction, Half Reactions, Electrons, Electron Transfer, Anode, Cathode, Oxidation, Reduction, Concentration, Net Ionic Equation, Molarity, Nernst Equation | High School

    Activity: Simulation Activity: Non-Standard Galvanic Cells Mark as Favorite (11 Favorites)

    In this activity, students will use a simulation to create a variety of non-standard condition galvanic/voltaic cells. This simulation allows students to choose the metal and solution for each half cell, as well as the concentration of those solutions. Students will build concentration cells and other non-standard cells and record the cell potential from the voltmeter. They will compare the results of different data sets, write net ionic equations, and describe electron flow through a galvanic/voltaic cell from anode to cathode as well as the direction of migration of ions, anions towards the anode and cations towards the cathode.

  • Le Châtelier's Principle, Reversible Reactions, Concentration | High School

    Access is an AACT member benefit. 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.

  • Exothermic & Endothermic, Physical Change, Heat, Temperature, Observations, Intermolecular Forces, Solute & Solvent, Saturated/Unsaturated/Supersaturated | High School, Middle School

    Lesson Plan: Particle Modeling of Hand Warmers Mark as Favorite (23 Favorites)

    In this lesson, students will create a particulate model of matter that explains energy changes and transfer during a physical process, such as the crystallization of a solid from a supersaturated solution.

  • Reaction Rate, Graphing, Temperature, Concentration | High School, Middle School

    Access is an AACT member benefit. Lab: Starch-Iodine Clock Reaction Mark as Favorite (71 Favorites)

    In this lab, students perform an iodine clock reaction to determine how concentration and temperature effect the reaction rate.

  • Titrations, Acid Base Reactions, Indicators, Chemical Change, Stoichiometry, Balancing Equations, Concentration, Molarity, Error Analysis, Dimensional Analysis, Measurements | High School

    Access is an AACT member benefit. Lab: Vinegar Quality Control Mark as Favorite (45 Favorites)

    In this lab, students will perform a titration of a vinegar sample to determine if it is it close to the concentration claimed on the bottle.

  • Titrations, Equivalence Point, Indicators, Acid Base Reactions, Chemical Change, Salts, Molarity, Reaction Rate, Order of Reaction , Error Analysis | High School

    Access is an AACT member benefit. Lab: Titration Lab with Kinetics Mark as Favorite (15 Favorites)

    In this lab, students calculate the molarity of an unknown using a titration and also by solving for a dilution.

  • Ionic Bonding, Net Ionic Equation | High School

    Lab: The pH of Salts Mark as Favorite (17 Favorites)

    In this lab, students will determine whether an aqueous solution is acidic, basic, or neutral. Students will write net ionic equations for the hydrolysis of a solution.

  • Solubility, Conductivity, Concentration, Equilibrium Constants, Stoichiometry | High School

    Access is an AACT member benefit. 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.

  • Titrations, Concentration, Indicators, Acid Base Reactions, Equivalence Point, Molarity | High School

    Access is an AACT member benefit. Lab: Lethal Dose Mark as Favorite (37 Favorites)

    In this lab, students will perform several titrations to calculate the concentration of potentially “lethal” medicycloprophic solutions.

  • Calorimetry, Exothermic & Endothermic, Temperature, Stoichiometry, Limiting Reactant, Chemical Change, Molarity, Enthalpy, Heat, Concentration, Experimental Design, Scientific Method | High School

    Lab: Less Than Zero Mark as Favorite (36 Favorites)

    In this lab, students will investigate the endothermic reaction between baking soda and HCl. Students will consider stoichiometric ratios, molar concentrations, reaction scale, and calorimetry. The lab starts with a scripted reaction that uses given molar ratios, a glass beaker, and 2-M HCl. They will witness a temperature drop of about 5 to 8 C. Students then adjust the experiment so they can achieve a temperature drop of more than 20 C.

  • Salts, Indicators, Strong vs Weak, Net Ionic Equation | High School

    Lab: Hydrolysis of Salts Mark as Favorite (17 Favorites)

    In this lab, students will observe the hydrolysis of several salt samples. They will first predict which solutions are acidic, basic or neutral, and then discover the pH of each through the use of indicators. Students will share and compile their experimental results, as well as have an opportunity to determine the net-ionic equations for each reaction.

  • Galvanic Cells, Reduction, Oxidation, Half Reactions, Cathode, Anode, Redox Reaction, Electrons, Electron Transfer, Net Ionic Equation, Error Analysis | High School

    Access is an AACT member benefit. Lab: Four-Way Galvanic Cell Mark as Favorite (29 Favorites)

    In this lab, students will build a simple galvanic cell to measure cell potential and will compare their data to theoretical calculations. Students will become more familiar with cells during this opportunity to investigate and compare numerous electrochemistry reactions.

  • Heat of Neutralization, Acid Base Reactions, Exothermic & Endothermic, Temperature, Specific Heat, Calorimetry, Bond Energy, Net Ionic Equation, Molarity, Dimensional Analysis, Measurements, Mole Concept | High School

    Access is an AACT member benefit. Lab: Heat of Neutralization Mark as Favorite (6 Favorites)

    In this lab, students carry out an acid-base reaction to calculate the heat of neutralization based on experimental data. This lab will reinforce the concepts of exothermic and endothermic processes, system and surroundings, and heat of reaction (specifically, neutralization).

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