Classroom Resources: Acids & Bases
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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 (3 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.

Redox Reaction, Oxidation, Half Reactions, Oxidation Number, Titrations, Stoichiometry, Reduction  High School
Lesson Plan: Redox Reactions & Titrations Mark as Favorite (13 Favorites)
This lesson students will review oxidation states, halfreactions, balancing reactions and understand how to complete calculations and perform a redox titration.

Chemical Change, Chemical Change, Acid Base Reactions, Observations  Middle School, High School
Lab: How do Sinkholes Form? Mark as Favorite (12 Favorites)
In this lab students will learn how acidic groundwater reacts with limestone, causing it to erode. Sinkholes form when eroded limestone underneath the surface of the earth can no longer support the ground above it. Students will test how acid reacts with a variety of rocks and determine which rocks would be best to build a city on top of in order to reduce the chance of sinkholes forming.

Acid & Base Theories, Strong vs Weak, History  Middle School, High School
Activity: Acid & Base Guys Video Questions Mark as Favorite (4 Favorites)
In this activity, students will watch a video about the history of acids and bases. They will learn about the evolution of these theories, from Lavoisier to Arrhenius, BronstedLowry, and Lewis.

Salts, Indicators, Strong vs Weak, Net Ionic Equation  High School
Lab: Hydrolysis of Salts Mark as Favorite (7 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 netionic equations for each reaction.

Acid & Base Theories, Concentration  High School
Lesson Plan: Calculating pH, A Look at Logarithms Mark as Favorite (21 Favorites)
In this lesson, students will be introduced to a base10 logarithmic scale and use it to calculate pH from hydrogen ion concentration. Often students are able to calculate pH by pushing the correct buttons on their calculators, but they don’t understand what the values mean. This lesson attempts to bridge that gap using a guided inquiry model.

Salts, Equilibrium Constants, Strong vs Weak  High School
Lesson Plan: Categorizing, Calculating and Applying Concepts from Weak Acids, Weak Bases and Salts Mark as Favorite (15 Favorites)
In this lesson students will write dissociation reactions to make connections between conjugate acidbase 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.

Buffers, Acid & Base Theories  High School
Lesson Plan: Preparation and Evaluation of Buffers Mark as Favorite (10 Favorites)
In this lesson students will use multiple methods to calculate and prepare buffered solutions with a desired pH. Upon preparation of the solutions, the students will explore differing aspects of buffers including buffering capacity and predominant form.

Indicators, Interdisciplinary  Middle School, High School
Lab: Exhaling Acid Mark as Favorite (14 Favorites)
In this lab students will observe how increased carbon dioxide levels lead to a buildup of acidic conditions.

Indicators  High School
Lab: Exploring the Properties of Acids and Bases Mark as Favorite (18 Favorites)
In this lab, students will rotate through five stations. They will explore the properties of many household substances and discover a few properties of acids and bases.

Titrations, Indicators, Acid Base Reactions, Stoichiometry, Percent Composition  High School
Lab: The Eggstraordinary Issue Mark as Favorite (34 Favorites)
In this lab students will determine the percent composition of calcium carbonate contained in an eggshell by using a back titration in order to address a farmer’s concerns about his hen’s fragile eggs. Two versions of the student lab are included, a scripted version, and an inquiry version.

Titrations, Indicators, Molarity, Concentration  High School
Demonstration: How to Perform a Titration Mark as Favorite (7 Favorites)
In this demonstration, the teacher will show how a titration is setup and performed. Also, the teacher will utilize different indicators to show how they work and why they are necessary. At the end of the demonstration, the teacher will also explain how to calculate the molarity of the unknown substance.

Buffers, Solubility, Molecular Structure  High School
Lab: Aspirin Tablets: Are they all the Same? Mark as Favorite (15 Favorites)
In this lab, students will design an experiment to test the time and completeness of dissolution of various types of aspirin in different pH environments.

Indicators, Identifying an Unknown  Middle School, High School
Lab: Indicators of Acids and Bases Mark as Favorite (11 Favorites)
In this lab, students will use various indicators to identify unknown (clear) solutions as acidic, basic, or neutral.

Indicators  Middle School, High School
Lab: Cellular Respiration and pH Mark as Favorite (5 Favorites)
In this lab, students learn how a pH indicator can be used to detect the presence of CO2 when they exhale.

Acid Base Reactions, Stoichiometry, Limiting Reactant  High School
Lab: Fizzy Drink Mark as Favorite (24 Favorites)
In this lab, students will learn the properties of acid and bases while applying the principles of stoichiometry to calculate the amount of base needed to neutralize an acid completely and produce a bubbly drink.

Buffers  High School
Activity: What are Buffers? Mark as Favorite (9 Favorites)
In this activity, students will complete a card sort that will allow them to understand what makes up a buffer solution and how it works to keep pH from changing.

Acid & Base Theories, Strong vs Weak, History  Middle School, High School
Video: Acid & Base Guys Video Mark as Favorite (14 Favorites)
This video tells the story of how the definition of acids and bases has evolved from Lavoisier, to Arrhenius, BronstedLowry, and Lewis.

Titrations, Concentration  High School
Lab: Lethal Dose Mark as Favorite (13 Favorites)
In this lab, students will perform several titrations to calculate the concentration of potentially “lethal” medicycloprophic solutions.

Titrations, Acid Base Reactions  High School
Lab: Vinegar Quality Control Mark as Favorite (8 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.

Pros Cons of Nuclear Power, Combustion, Acid Rain, Radiation, Renewable Energy, Radiation  High School
Activity: Town Meeting Mark as Favorite (6 Favorites)
In this activity, students will learn about acid rain, gas scrubbers, halflife, chain reactions, and other topics around electricity production through a debate on nuclear power.

Titrations, Equivalence point, Indicators, Acid Base Reactions, Chemical Change, Salts, Molarity, Reaction Rate, Order of Reaction , Error analysis  High School
Lab: Titration Lab with Kinetics Mark as Favorite (4 Favorites)
In this lab, students calculate the molarity of an unknown using a titration and also by solving for a dilution.

Titrations, Strong vs Weak, Indicators  High School
Lab: Titration Curves Mark as Favorite (3 Favorites)
In this lab, students graphically observe a plot of micro acid/base titrations and determine the equivalence point of each plotted curve.

Strong vs Weak, Indicators, Titrations, pH  High School
Lab: Titration Mark as Favorite (1 Favorite)
In this lab, students will learn the difference between strong, weak, and concentrated acids by carrying out various titrations.

Acid Rain, Chemical Change  High School
Activity: Investigating Acid Rain Mark as Favorite (7 Favorites)
In this activity, students will investigate the chemistry of acid rain through web based research. Students will also have the opportunity to observe the reaction between a common acid and a material in a week long simulation and relate their findings to the effects of acid rain.