Does molecular mass affect the rate of diffusion? The simulation allows scholars to experiment with diffusion while varying the molecular mass and temperature. The timer automatically stops when a certain point is reached, making it easy...

Only three slides comprise this collection. The first defines molecular weight and molar mass. The second lists the molar mass and number of particles in a mole of several substances. The third is a chart depicting a chemical reaction...

In this volumetric analysis instructional activity, learners experimented with a known amount of hydrochloric acid to determine the relative molecular mass of an unknown group 1 carbonate. Students use volumetric analysis to determine...

In this moles, molecules and molecular mass worksheet, students solve 18 problems where they find the number of moles in a gas, they calculate the number of molecules in a sample of gas or they find the volume of gas in a...

In this molecules, moles and molar masses worksheet, students find the atomic masses of 8 elements, they write the formulas for 6 diagrams of molecules and they find the molecular masses of 12 compounds. Students also find the fraction...

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...

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...

In this moles worksheet, learners read about mole and learn how to calculate the number of moles in specific mass of compounds. This worksheet has 14 problems to solve.

In this molecular mass worksheet, students use factor labeling to convert moles to grams or moles to atoms. Students calculate molecular mass. This worksheet has 6 problems to solve.

In this chemistry overview worksheet, students calculated the volume of different gases and liquids given in a word problem. Students had to calculate the molecular mass and write the empirical formula and the molecular formula.

For this periodic table worksheet, students review atomic mass, molar mass, and percent composition of compounds. Then students complete 4 problems.

In this moles worksheet, students review solubility, moles of solute, molar mass, and colligative properties. This worksheet has 10multiple choice questions and 11 problems to solve.

In this formulas worksheet, students review how to write compounds in their empirical formula and molecular formula. Then students complete 4 problems.

To wrap up your year of general chemistry, have lab groups compete in a tot wire chemical vapor deposition (HWCVD) competition. With their foundation in chemical nomenclature, stoichiometry, and gas laws, each group completes several...

In this mass worksheet, learners determine the percentage composition of given compounds. Students write the empirical formula from the percentage composition. This worksheet has 5 problems to solve.

In this moles worksheet students complete a set of calculations to find how many atoms and moles are in different substances. 

Students investigate moles and Avogadro's hypothesis. In this moles lesson plan, students complete a worksheet by finding the volume of 1 mole of each substance given its density and they find the number of molecules, the formula, the...

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...

In this stoichiometry worksheet, students practice calculating moles, molar mass, and percentage composition of given compounds. This worksheet has 55 problems to solve.

Plenty of time was invested in creating this detailed presentation. The first slide alone includes several steps that support your explanation of percent composition, a precursor to understanding how to write empirical and molecular...

For this gases worksheet, students review the kinetic molecular theory and use the ideal gas law to solve 20 problems.

In this freezing point worksheet, students determine the freezing point of solutions at different concentrations. This worksheet has 9 problems to solve.

In this elements worksheet, students practice converting a given amount of an element to the mass using its molar mass. This worksheet has 12 problems to solve.

In this compounds worksheet, pupils determine the number of molecules in molar mass for given amounts of different compounds. This worksheet has 5 problems to solve.