Worksheet
Curated OER

Percent Mass, Moles, and Avogadro Worksheet

For Students 9th - 12th
In this moles worksheet students complete a set of calculations to find how many atoms and moles are in different substances. 
Worksheet
Curated OER

Water Vapor Equilibrium

For Students 12th - Higher Ed
In this chemistry worksheet, learners complete 12 short answer questions and problems on water vapor equilibrium. They calculate equilibrium concentrations of reactants and products.
Lesson Plan
Curated OER

Understanding the Mole

For Teachers 9th - 12th
Students develop an understanding of the mole and molar masses of elements. For this mole lesson plan, students use beans to find their relative masses and draw parallels to the atomic masses of elements. Students work in teams and each...
Worksheet
Curated OER

Water Equilibria

For Students Higher Ed
In this water equilibria instructional activity, students calculate the pH of solutions, they fill in a table with the type of acid or base given a compound and it's concentration and they calculate approximate solubilities for salts.
Lesson Plan
Curated OER

Lab: Determining the Number of Moles and Molecules Used Up In a Burning Candle

For Teachers 9th - 12th
Students find moles and molecules used when a candle burns. In this moles and molecules lesson plan, students calculate the initial mass of a candle and the mass of a candle after it burns for 3 minutes. They calculate the mass lost when...
Worksheet
Curated OER

Acid and Base Problems

For Students Higher Ed
In this acid and base worksheet, students use seven steps to calculate concentrations of ions in acidic and basic solutions. They also determine the type of acid or base.
Worksheet
Curated OER

WS 8.9 Review Worksheet-Solutions

For Students 10th - 12th
In this solubility worksheet, students answer eighteen questions including reading a graph to indicate solubility of three different compounds at particular temperatures, calculating percent of solutes in a solution, determining molarity...
Lesson Plan
Curated OER

Laboratory: Hydrated Salts

For Teachers 10th - 12th
In this hydrated salt worksheet, learners answer questions after completing a lab experiment using a hydrated salt. The calculate the empirical formula for the hydrate, they name the hydrate and they determine the mass of the water in...
Lesson Plan
Curated OER

Graham's Laws: Diffusion and Effusion of Gases

For Teachers 7th - 12th
Students conduct a series of experiments to explore Graham's law. In this chemistry lesson plan, students differentiate effusion and diffusion. They perform calculations using Boyle's, Henry's, Charles' and Graham's Laws.
Worksheet
Curated OER

Acids and Bases

For Students 10th - Higher Ed
In this acid and base worksheet, students calculate the pH of solutions, sketch a titration curve, write equations used to determine the pH of solutions and determine the location on a titration curve of a given molar solution.
Worksheet
Curated OER

WS 10.7 pH and pOH

For Students 10th - 12th
In this acid and base worksheet, students answer questions about calculating the pH and pOH of solutions. They complete a table given hydronium ion concentrations, hydroxide ion concentrations, the pH or the pOH and they find the missing...
Worksheet
Curated OER

Hydrocarbons

For Students 9th - 12th
In this hydrocarbon instructional activity, students answer 13 questions about different types of organic molecules categorized as hydrocarbons. They explain the different hydrocarbons, they draw structural diagrams for different...
Lesson Plan
Curated OER

Unit Conversion in Chemistry

For Teachers 9th - 12th
Hopefully by the time high schoolers are enrolled in your chemistry class, they are skilled with unit conversion. It does not hurt, however, to take an hour early in the school year to review this vital skill. This plan simply provides a...
Lesson Plan
Virginia Department of Education

Thermochemistry: Heat and Chemical Changes

For Teachers 9th - 12th
What makes particles attract? Here, learners engage in multiple activities that fully describe colligative properties and allow the ability to critically assess the importance of these properties in daily life. Young chemists...
Worksheet
Curated OER

WS 10.8 Acid-Base Neutralization and Titration

For Students 10th - 12th
In this acid and base worksheet, students write balanced equations for neutralization reactions, they calculate volumes of acids and bases needed to titrate solutions and they determine molarities of solutions.
Worksheet
Curated OER

Challenging Thermodynamics Problems

For Students 10th - Higher Ed
In this thermodynamics worksheet, students apply Hess's Law and review internal energy theory and heat capacity theory. Students use Boltzmann formula to calculate entropy and calculate the change in free energy. This worksheet has 12...
Worksheet
Curated OER

Moles Worksheet

For Students 10th - 11th
In this chemistry worksheet, students identify and write how many significant figures they would use for each problem. Then they round the answers to the appropriate number of significant figures. Finally, students calculate the mass of...
Worksheet
Curated OER

Acids and Bases

For Students 10th - Higher Ed
In this acid and base worksheet, students solve 11 problems including calculating pH of solutions, describing buffers, calculating solubilities of solutions and identifying acid-base pairs.
Worksheet
Curated OER

Stoichiometry

For Students Higher Ed
In this stoichiometry activity, students determine the concentration of solutions and calculate the molarity of solutions for given chemical equations. This activity has 4 problems to solve.
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...
Worksheet
Curated OER

Other Aspects of Aqueous Equilibria

For Students 11th - Higher Ed
In this aqueous equilbria worksheet, students write the solubility product expressions for the given salts. Students determine what affects the solubility of salts. Students calculate the pH of a buffer solution. This worksheet has 14...
Worksheet
Curated OER

Mole Relationships

For Students 9th - Higher Ed
In this moles worksheet, students complete 93 word problems in they calculate the moles, volume, or mass of different molecules.
Lesson Plan
Curated OER

A Solution for Moles

For Teachers 10th - 12th
Students calculate the concentration of different solutions. For this chemistry lesson, students explain what a solution is. They explain ways to change the concentration of a solution.
Lesson Plan
Curated OER

Determination of the percentage of Acetic Acid in Vinegar

For Teachers 10th - 12th
Young scholars determine the concentration of acetic acid when the concentration of the base with which is titrated is known. They investigate how to weigh a sample using the balance, measure volumes using graduated cylinder, explore...