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...
Virginia Department of Education
Molar Volume of a Gas
What is a chemist's favorite plant? Stoichiome Tree! Scholars produce hydrogen gas by reacting magnesium with hydrochloric acid. Then they calculate the molar volume of the gas produced before answering assessment questions.
Curated OER
Chapter 15 Review, Section 2: Acid-Base Titration and pH
Keep it simple with this chemistry assignment. Learners examine an acid-base titration graph and answer four questions about the data. Then they will balance neutralization equations and calculate molarity for several specific solutions....
Curated OER
Relating Moles to Coefficients of a Chemical Equation
Young scholars investigate the coefficients in a chemical equation and their relation to moles. In this moles and coefficients lesson plan, students perform a single replacement reaction of copper (II) sulfate and zinc and find the ratio...
Curated OER
Stoichiometry Problems
A cookie recipe is displayed as an example of proportional relationships, a clever way to introduce your chemists to stoichiometry! The steps of stoichiometry are listed, molar volume is explained, and then several stoichiometry problems...
Curated OER
Molar Ratio
Students conduct an experiment in which they react sodium bicarbonate with hydrochloric acid to determine the molar ration between the two reactants. Students must write correct formula and a balanced chemical equation and explain how...
Curated OER
Moles
In this moles learning exercise, students calculate molar ratios, moles, and mass of different molecules. This learning exercise has 10 word problems.
Curated OER
Stoichiometry
In this stoichiometry worksheet, students determine the molar ratio for chemical equations. Students calculate moles and grams for reactions. This worksheet has 10 problems to solve.
Curated OER
Stoichiometry
For this stoichiometry worksheet, students review concepts related to stoichiometry including molar ratio and conservation of matter. Students calculate the number of mole is specific reactions. This worksheet has 7 fill in the blank, 5...
Curated OER
Chapter 10: Chemical Calculations and Chemical Equations
In this chemical equations worksheet, students write and balance chemical reactions. They complete 98 short answer and problem solving questions on molarity and chemical equations.
Curated OER
Stoichiometry
In this stoichiometry worksheet, students review definitions and equations associated with molarity, density, atomic mass, molarity, and dilutions. This worksheet has 18 word problems.
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...
Virginia Department of Education
Formulas and Percent Compositions of Ionic Compounds
Try not to blind anyone with science by following the safety rules. The lesson encourages scholars to form an ionic compound from magnesium and chlorine. Then they determine the empirical formula and determine the mole ratio and percent...
Virginia Department of Education
Finding the Formula and Percent Composition
Do you have mole problems? If so, call Avogadro at 602-2140. The lesson starts with pupils working independently to solve for molar mass of ionic compounds. Then they learn to solve for percent composition and later perform an...
Virginia Department of Education
Solution Concentrations
What happens when you combine 6.022 times 10 to the 23 piles of dirt into one? You make a mountain out of a mole hill. Scholars use dehydration to obtain percent composition and then calculate the molarity of the original solution.
National Institute of Open Schooling
Mole Concept
Learners explore atomic measurement in the first activity in a series of 36. Through readings, activities, and questions, classes review standard SI units, learn about Avogadro's constant, and use it to help them calculate moles. They...
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...
Science Geek
Percent Composition, Empirical and Molecular Formulas
Help your pupils understand when empirical becomes molecular. The lesson presentation demonstrates the connection between empirical formulas and molecular formulas. Then, given percent composition, the lesson demonstrates the steps to...
Curated OER
Solution Chemistry Investigation
Students engage in a instructional activity that is concerned with the concepts related to solution chemistry. They calculate the molar mass of various chemical compounds. Then students predict the anion ratio for ionic compounds....
Curated OER
The Mole
This compact collection of slides explains the history and use of the mole unit. Relative atomic mass, as John Dalton understood it, is explained. Avogadro's number is also introduced. The mole, or the unit for the amount of a substance,...
Normal Community High School
Mole Calculations
You didn't know you'd find moles in chemistry class! Through the introduction of moles and molar volume at STP, classes see how to calculate moles using a given chemical equation. The presentation includes a short review of ions in...
Curated OER
Fatty Acids For Soap Making
Students titrate a sample of fatty acids with standardized sodium hydroxide solution. From the amount of base needed for neutralization and the mass of sample used for titration, the apparent average molar mass of the sample is...
Curated OER
Review of Stoichiometry
In this chemistry instructional activity, students answer 50 multiple choice questions on stoichiometric calculations, the mole and chemical reactions.
Virginia Department of Education
Charles’ Law
Searching for a relatively interesting way to demonstrate Charles' Law? Here is a lesson in which pupils heat air inside a flask and then cool the flask to quickly cool the air. They make observations about what occurs during the cooling...