Curated OER
Molarity
In this molarity worksheet, students determine the concentration or molarity for each of the solutions. Students manipulate the molarity formula to calculate the moles, mass, or volume of each problem.
Curated OER
Atomic Mass, Moles, and the Periodic Table
In this periodic table worksheet, students review atomic mass, molar mass, and percent composition of compounds. Then students complete 4 problems.
Curated OER
Equilibrium Calculations
The equilibrium constant does not change — as long as the temperature remains unchanged. Here's presentation that briefly reviews equilibrium constants before working through four practice problems, including three calculating the Keq...
Science Geek
Calculations of Solution Concentration
Teach the process of calculating concentrations of a solute. The fourth in a series of seven chemistry lessons shows the various types of calculations including grams per liter, molarity, parts per million, and percent composition. The...
Curated OER
Chemical Quantities
Prepare your chemistry charges for stoichiometry with this PowerPoint. The objective is to be able to calculate molar mass for different compounds. Beginning with the foundational definition of moles and moving through atomic and...
Curated OER
Moles Worksheet
For 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...
Curated OER
Moles, Molarity, Grams, and Formula Units
In this atoms worksheet, learners calculate the number of moles, molarity, grams, or formula units for 20 different problems.
Virginia Department of Education
Moles Lab Activities
Want my name and number? It's 6.0221415 times 10 to the 23rd, and my name is Avogadro. Providing nine different activities, experiments, and labs, this lesson keeps Avogadro relevant to your class all year long.
National Institute of Open Schooling
Chemical Arithmetics
Substances with the same empirical and molecular formula must be differentiated by their structural formula. Part two in a series of 36 has pupils using chemical formulas to calculate how much of a compound is present in a given...
Curated OER
Chemical Calculations
In this chemical calculations worksheet, students fill in 7 blanks with appropriate terms. They determine if 7 statements are true or false, they match 5 conversion problems to their solutions and they solve 2 stoichiometry problems...
Curated OER
How Large is a Mole of M&M's
High schoolers calculate whether or not a mole of M&M's fill their high school. They practice factor-labeling, define a mole, and calculate the number of cubic feet per mole of M&M's. To answer the question they measure and...
Curated OER
Titration Calculations
In this titration activity, students calculate the moles of acids in a given amount of solution. Students balance equations and calculate the concentrations of given acids. This activity has 10 problems to solve.
Curated OER
Moles
In this moles worksheet, students determine the mole ratio in given compounds and calculate the number of moles of specific elements in chemical compounds. This worksheet has 19 problems to solve.
Curated OER
The Mole
Young scholars explore the concent of using the mole to solve problems related to counts small particles of matter. Students work individually and in groups to complete conversions of substances from moles to matter.
Curated OER
Stoichiometry
In this stoichiometry worksheet, students practice calculating moles, molarity, and the concentration of a solution in molarity. This worksheet has 12 multiple choice questions and 3 problems to solve.
Curated OER
Empirical Formula: From Percentage to Formula
Starting with definitions of empirical and molecular formulas, this slide show guides pupils through the ways to calculate and produce chemical formulas as percentages and molar ratios. A number of examples are given for viewers to try...
Curated OER
Thermodynamics: Enthalpy of Reaction and Hess Law
In this thermodynamics worksheet, students calculate the change in enthalpy for several given chemical equations provided. Students specify if the reaction was endothermic or exothermic in nature.
Curated OER
Chemical Compounds
In this compounds worksheet, students practice balancing equations, determine formula mass, and calculate number of moles for given compounds. This worksheet has 7 fill in the blank and 3 problems to solve.
Curated OER
Molarity of Solutions
In this molarity learning exercise, students determine the mass needed to make the given solutions and calculate molarity and volume of solutions. This learning exercise has 14 problems to solve.
Curated OER
Energy and Stoichiometry
In this stoichiometry worksheet, learners calculate the amount of heat energy released in combustion equations. This worksheet has 4 problems to solve.
Curated OER
Equilibrium Calculations
In this equilibrium worksheet, students calculate the equilibrium concentrations for given compounds. This worksheet has four problems to solve.
Curated OER
2000 U.S. National Chemistry Olympiad Local Section Exam
This 60-question comprehensive exam was designed to determine who would go on to compete in the 2000 US National Chemistry Olympiad. Hopefuls answer multiple choice questions regarding all chemistry topics taught in the first year...
Curated OER
2009 U. S. National Chemistry Olympiad - Local Section Exam
Here is a copy of a past national challenge exam that you can use in your general chemistry course as a unit or semester review. Sixty multiple-choice questions query learners on properties of matter, stoichiometry, reactions, and...
Curated OER
2007 U.S. National Chemistry Olympiad Local Section Exam
Sixty multiple choice questions cover the entire gamut of chemistry concepts. This is the local section of the U.S. National Chemistry Olympiad, where your chemistry candidates take a shot at entering the national competition. They...