Curated OER
Determining the Molar Mass of a Gas
Students determine the molar mass of a gas. In this molar mass of a gas lesson plan, students use the vapor density of an organic solvent to determine its molar mass. They vaporize the solvent and collect the vapor. Once it is cooled...
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
The Molar Volume of a Gas
Learners find the standard molar volume of a gas. In this molar volume of a gas lesson plan, students react magnesium metal and hydrochloric acid and collect the hydrogen gas produced using a gas collection tube. Learners calculate the...
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...
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...
University of Georgia
Using Freezing-Point Depression to Find Molecular Weight
Explore the mathematical relationship between a solvent and solute. Learners use technology to measure the cooling patterns of a solvent with varying concentrations of solute. Through an analysis of the data, pupils realize that the rate...
Curated OER
Mining an Ore
Learners investigate how to determine the percent composition of a mineral in an ore. In this mining an ore lesson plan, students use chocolate chips cookies to represent an ore and they remove precious minerals (the chocolate chips)...
Curated OER
Chemistry Lab-Molar Volume of Gas
Students determine the molar volume of hydrogen gas. In this molar volume lesson plan, students find the molar volume of hydrogen produced in a reaction between magnesium and hydrochloric acid. They use a eudiometer to measure the volume...
Curated OER
Understanding the Mole
Young scholars develop an understanding of the mole and molar masses of elements. In this mole lesson plan, students use beans to find their relative masses and draw parallels to the atomic masses of elements. Young scholars work in...
Curated OER
Solutions Worksheet
Students complete a worksheet on solutes in chemistry. They are given an equation in order to find the total mass solution, molarity, and molality.
Curated OER
Worksheet 2-2 Stoichiometric Tools
In this stoichiometry worksheet, students solve a variety of problems including finding empirical and molecular formulas, determining molarities of solutions, determining molecular weights of compounds and calculating the percent mass of...
Curated OER
Molarity, Excess and Percent Yield
In this molarity worksheet, pupils are given balanced equations and they are to calculate the mass or volume of reactants and products. Students calculate the theoretical, percentage, and actual yield for chemical equations. This...
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
The Connection Between Pigment and Light Colors
Learners explain the mole concept and use this concept to prepare chemical solutions of particular molarities.
Curated OER
Determination of Equivalent Weight of an Acid
In this chemistry worksheet, young scholars look for the weight of acid and examine its mass using chemical equations and a laboratory procedure.
Curated OER
Lab: Determining the Number of Moles and Molecules Used Up In a Burning Candle
Students find moles and molecules used when a candle burns. For 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...
Curated OER
Iron Filings
Young scholars conduct an experiment in which a solution of copper(II) sulfate is added to iron filings. They write and balance the equation for the reaction that occurs and calculate the amount of iron that reacted and the percent yield...
Curated OER
Ideal Gas Law
Students explain and use ideal gas law and use the law to solve problems. They use conversion factors to convert mass to mol. Also students use stoichiometry skills previously learned.
LABScI
Freezing Point Depression: Why Don’t Oceans Freeze?
Can you go ice fishing in the ocean? Learners examine the freezing point of different saltwater solutions. Each solution has a different concentration of salt. By comparing the freezing points graphically, they make conclusions about...