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
Mass-Moles-Particles
In this moles worksheet, students define a mole and convert grams to moles or moles to molecules. Students convert specific mass of compounds to moles. This worksheet has 1 true or false, 6 short answer, 3 fill in the blank, and 15...
Pingry School
Mole Relationship in a Chemical Reaction
What do budding scientists know about moles and reactions? Using an attention-grabbing lab experiment, young scholars collect data to apply the law of conservation of mass to predict the mass of gaseous products. They examine several...
Pingry School
Determination of the Molar Mass of an Unknown Acid
Acids and bases have a love-hate relationship. They balance each other so nicely, but they are complete opposites! Learners use these concepts and titration to calculate the molar mass of an unknown substance. The experiment document...
Curated OER
Chemistry 151 - Final Review
In this chemistry review activity, students give atomic symbols for given atoms, calculate moles, determine empirical formulas, and balance chemical equations. This activity has 1 drawing, 9 fill in the blank, and 12 word problems.
Pingry School
Replacement of Hydrogen by a Metal
As the most abundant element on the earth, hydrogen requires no replacement. Yet scholars learn to replace hydrogen with a metal to liberate the hydrogen gas. A simple procedure and data table include the necessary information and...
Curated OER
Determination of An Acid Dissociation
In this chemistry worksheet, learners examine the given concept in order to apply in the laboratory setting. The sheet includes in depth background information.
Pingry School
Determination of Molar Mass by Boiling Point Elevation
Francis Raoult discovered the change in boiling points of solutions varies by the number of particles in the solution. Scholars apply the concept to determine the molality of a solution based on the change in boiling point. They use an...
It's About Time
Atoms and Their Masses
Are atoms too small to be isolated? Answer this question and more as you provide young chemists with the tools to conduct a hands-on activity demonstrating atomic mass. Pupils explore the mass of copper and aluminum, compare Dalton's...
Curated OER
Determination of Equivalent Weight of an Acid
In this chemistry worksheet, students look for the weight of acid and examine its mass using chemical equations and a laboratory procedure.
Curated OER
Reacting Masses Problems
In this reactions learning exercise, student determine the products of a reaction, balance an equation, and calculate the number of moles in an experiment. This learning exercise has 4 problems to solve.
Curated OER
Find the Percent of Iron in Manganate (VII)
Dilute sulphuric acid is used to oxidize manganate (VII) into manganese (II) and water. Step-by-step procedures are outlined on the learning exercise as well as calculations for junior chemists to perform in their science journals. This...
Curated OER
Chemistry 152 - Competencies
In this chemistry competencies instructional activity, students calculate rate law, balance equations, determine pH of solutions, give the oxidation number for atoms, and write in formulas. This instructional activity has 4 fill in the...
Curated OER
Kinetics Homework Problem Set
In this chemistry activity, students determine the reaction rate as specified for each in seconds. Then they determine the activation energy for the reaction and preexponential factor as stated. Students also determine the concentration...
Curated OER
Calorimetry Worksheet
In this chemistry worksheet, students answer the essay questions while focusing on the concept of measuring calories and there is a variety of types of problems.
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Volumetric Analysis 3-To Determine the Relative Molecular Mass of a Soluble Base
In this volumetric analysis worksheet, students determine the relative molecular mass of an unknown group 1 carbonate by experimenting with a known amount of hydrochloric acid. Students use volumetric analysis to determine the moles of...
Curated OER
Balancing Redox Reactions
In this redox reaction learning exercise, high schoolers perform a redox titration in order to determine the number of iodide ions which react with each mole of iodate (V) ions in a solution. Students calculate their answer using a...
Curated OER
Volumetric Analysis 2- To Standardize Hydrochloric Acid
In this volumetric analysis learning exercise, students use a standard solution they made of sodium carbonate to find the concentration of a hydrochloric acid solution by titration. Students calculate the number of moles of sodium...
Curated OER
PV=nRT=Bang!
In this ideal gas law worksheet, students watch a demonstration using liquid nitrogen, a plastic 2 liter bottle and a garbage can of water that excites students to use the ideal gas law to solve problems. Students analyze the results of...
Curated OER
Chemical Equilibrium
In this chemical reactions worksheet, learners determine the value of the equilibrium constant and determine if the equilibrium equation given will lead to a reaction. This worksheet has 27 problems to solve.
Curated OER
Stoichiometry
In this stoichiometry instructional activity, students identify types of reactions, show the products, and balance the equations. Students determine the limiting reagent, theoretical yield, and percent yield for given reactions. This...