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Assessment
Curated OER

2000 U.S. National Chemistry Olympiad National Exam - Part I

For Students 9th - 12th
The National Chemistry Olympiad exams are comprehensive tests covering an entire  year of chemistry concepts. You can use them as practice for competing in the challenge, or simply as a review, or as an actual final exam for your general...
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Worksheet
Curated OER

Chapter 14 Review, Section 3: Acids and Bases

For Students 9th - 12th
Aside from a mention of a textbook page, this chemistry assignment is a suitable review of acids and bases. It begins by addressing conjugate pairs and acid base reactions. Neutralization and amphoteric properties are also dealt with....
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Lesson Plan
Curated OER

Equilibrium Systems

For Teachers 10th - Higher Ed
In this systems worksheet, students identify and label the conjugate acid-base pairs for the given equilibrium systems. This worksheet has 10 problems to solve.
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Worksheet
Curated OER

WS 10.5 Bronsted-Lowry Acid/Base

For Students 10th - 12th
For this acid and base worksheet, students fill in the blanks with terms related to Bronste-Lowry acids and bases and then answer questions about conjugate acids and bases. They write two equations for the ionization of an acid and a base.
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Worksheet
Curated OER

Conjugate Acid Base Pairs

For Students 10th - Higher Ed
In this acid and base worksheet, students determine the conjugate acid and the conjugate base for each chemical formula given. This worksheet has 28 fill in the blank questions.
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Worksheet
Curated OER

Acids and Bases Worksheet

For Students 10th - 12th
In this acids and bases worksheet, students determine the pH and pOH for a given solution. Students determine the conjugate acids for the given species. Students calculate which solution will have a higher pH. This worksheet has 16...
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Lesson Plan
Curated OER

Bronsted Acids and Equilibria

For Teachers 9th - Higher Ed
In this acids and bases worksheet, students give the Arrhenius and Bronsted definitions of an acid and base. Students determine the conjugate acids and bases and determine the stronger acids or bases from given compounds. This worksheet...
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Worksheet
Curated OER

Acid-base Homework Problem Set 1

For Students 11th - Higher Ed
In this acid-base reaction worksheet, students balance reaction equations when acids and bases are mixed then calculate the pH of the solution. There are 2 questions with a total of 18 parts.
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Worksheet
Curated OER

Chemistry Worksheet 3

For Students 9th - 11th
In this chemistry instructional activity, students determine the pH of several given solutions. Students label indicated substances as either acids or bases according to Bronsted-Lowry theory.
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Activity
Chemistry Collective

Chem Collective: Unknown Weak Acid Problem

For Students 9th - 10th
Perform an experiment to determine the pKa and concentration of an unknown acid.
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Activity
Chemistry Collective

Chem Collective: Unknown Weak Acid Problem Bonus

For Students 9th - 10th
Perform an experiment to determine the concentrations of a mixture of two acids.
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Activity
Chemistry Collective

Chem Collective: Unknown Base Problem

For Students 9th - 10th
Perform an experiment to determine the pKa and concentration of an unknown weak base.
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Activity
Chemistry Collective

Chem Collective: Determining the P Ka and Concentration Ratio

For Students 9th - 10th
Use the virtual lab to determine the pKa of a protein then create a buffer solution with a specific concentration ratio of the protein in its protonated/ unprotonated form.
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Activity
Chemistry Collective

Chem Collective: Unknown Acid and Base Problem

For Students 9th - 10th
In this exercise, students graph the titration curve of an unknown acid and base to determine their pKa's and concentrations.
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Activity
Chemistry Collective

Chem Collective: Dna Dye Binding: Equilibrium and Buffer Solutions

For Students 9th - 10th
Students examine equilibrium and buffer solutions in a biological setting.
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Activity
Chemistry Collective

Chem Collective: Strong Acid and Base Problems

For Teachers 9th - 10th
Textbook-style strong acid and base problems that can be checked using the Virtual Lab.
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Activity
Chemistry Collective

Chem Collective: Weak Acid and Base Problems

For Students 9th - 10th
Textbook-style weak acid and base problems that can be checked using the Virtual Lab.