Acid Teacher Resources

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Students prepare a test solution whose color changes when an acid or a base is added. They determine whether various household substances are acids or bases and look for patterns in the results. Students determine how their test solution compares to commerical acid-bases testers; and search for other test solutions.
This video introduces students to the concept of Conjugate Acids and Bases. The important point for students to grasp, and Sal does a nice job illustrating this point, is that for every conjugate acid/base pair, the weaker the acid, the stronger its base will be. The weaker the base, the stronger its conjugate acid will be.
Acquaint your chemistry class with acids and bases by showing this bold and bright PowerPoint. Viewers learn about the characteristics of acids and bases and stop at intervals to answer several questions about what they are learning. Use this on the day that you introduce this topic, and follow it with laboratory exercises in which young chemists observe some of these characteristics up close.
In the previous video, Sal outlined what happens when a strong acid is put into reaction with another compound. In this presentation, he describes what happens when a weak acid is introduced. Sal explains why Hydrofluoric acid is much weaker than Hydrochloric acid, and shows how the molecules disassociate themselves from the weak acid much more rapidly than they do in a strong acid during a chemical reaction.
The previous video illustrated what happened when a strong acid is added to water. This presentation illustrates what happens when a weak acid is added. On the left axis, pH levels are measured. The horizontal axis represents two liters of water. The weaker acid is added to the water. This video shows what happens to the pH levels, and how the equivalence point is determined based on how much of the weak acid is added.
The use of acid-base titration as a way to find the mass of oxalic acid is the focus of this chemistry video. Sal takes a sample problem from a chemistry textbook and solves it. The math involved in the process is quite complex.
How acidic is your rainwater? Use these lesson plans to get students thinking about how acids affect the environment in which we live.
Strong Acid Titration is the focus of this chemistry video. Sal sets us up a graph. On the left axis, pH levels are measured. The horizontal axis represents two liters of water. The strong acid Hydroxide is added to the water. This video shows what happens to the pH levels, and how the equivalence point is determined based on how much hydroxide is added.
This second video on respiration focuses on the Krebs cycle, which is sometimes known as the citric acid cycle.
Simulated acid rain, a dilute sulfuric acid solution, needs to be prepared for this demonstration. After a condensed lecture on acid rain, you will apply the solution to a sample of granite and a sample of limestone. Your young scientists will create a data table in which to record the pH of the acid rain both before and after passing through the stone samples. The lesson is not exciting, but it effectively shows how limestone can have a buffering effect for the plants and animals.
Students develop an understanding of how aspirin works and how understanding it's interaction with other chemicals in the body aided doctors in medical research. They complete a lab that compares the reaction of regular aspirin and buffered aspirin in neutral, acidic, and basic solutions.
Learners use supporting evidence to predict if common household substances are acids or bases. They determine the pH of the substances and describe the results of the investigation and characteristics of each substance.
In this acid rain instructional activity, students read about acid rain from a leaf's perspective. They fill in the blanks with 9 terms to complete a paragraph about acid rain. They also are given 8 clues to complete a crossword puzzle. Their is a comic strip students read at the end of the activity.
Young scholars use evidence to predict whether or not a substance is an acid or a base.  In this chemistry lesson students determine the pH of substances.
In this acids and bases worksheet, students complete 34 multiple choice and problem solving questions on pH and pOH of solutions. They write net ionic equations for given reactions.
Sal defines the similarity of the carbonyl group on aldehyde to the carboxylic acid. Next, he clarifies the presence of the extra OH group instead of the carbon chain or hydrogen. He then recaps the definitions and behaviors of acids.
In this acids, bases and buffers worksheet, learners define terms, solve problems such as calculating the pH of solutions and the molarity of solutions and they write balanced equations of neutralization reactions.
In this acid and base worksheet, students answer 4 questions about the definitions of acids and bases. They illustrate the differences between Arrhenius and Bronsted acids and bases and draw Lewis diagrams for the formation of compounds from acids and bases. They compare Lewis, Bronsted and Arrhenius acids and bases.
In this acids and bases worksheet, students complete 32 fill in the blank and short answer questions on acidity or alkalinity. They color molecular diagram according to the key.
In this chemistry activity, students answer 35 multiple choice and problem solving questions on acids and bases concentration and pH.

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