Discussion of molecular formula and how to determine it from empirical formula. Practice problems are available.

[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will learn to calculate the percent composition of a compound either from mass data or from the chemical formula. They will use...

[Free Registration/Login may be required to access all resource tools.] The following online tutorial helps students use Dalton's Law and mole fraction to calculate the partial pressure of a gas in a mixture. They will learn to calculate...

Read how to use molar mass equations to find conversion factors and molecular compounds. View several examples using given formulas for molar mass.

Listen as this audio book shows the determination of empirical and molecular formulas. View the formula to calculate empirical and molecular formulas and the written steps for calculating.

Determining empirical formula from analytical data, and determing molecular formula from empirical formula, with flow charts and sample calculations.

Slides in presentation show how to use mass percent to calculate empirical and molecular formulas.

Change the mass of a suspended object to see how its movement and forces are affected by gravity.

Great activity with clear background information. Try out the lab using osmosis to calculate molecular weight.

Maleic Acid gives an excellent diprotic acid titration curve showing both inflection points clearly for calculation of molecular weight.

Explanation of how to calculate empirical and molecular formulas.

Dutch version of the well-known "Particle Adventure" physics website that teaches students about atoms, mass, particle physics, and quantum physics. The site discusses theories related to physics and provides other links related to the...

Adjust the ratio of the masses of different particles to see how buoyancy is affected.

Adjust frequency, amplitude, and perturbation in this simulation to graph the trajectory of a mass at the end of each pendulum.

Experiment to see how air resistance affects the periodic motion of a mass on a spring.

This site deals with Amedeo Avogadro, his life, his contributions to chemistry, and his famous number.

[Free Registration/Login may be required to access all resource tools.] Students will use a chemical formula or mass data to calculate the percent composition of a compound, and then calculate the empirical or molecular formula for a...

An introduction to the mole, a unit of measurement that quantifies atoms and molecules.

Students determine the molecular weight of a pure gas in a balloon by using gas laws and trapping the gas in a glass bottle. Students watch the instructor demonstrate the lab on day one. On day two and three they practice the lab. On day...

A collection of simulations representing concepts discussed in a mechanics unit of physics.

Observe how friction affects a mass connected to two springs that are on opposite sides of the mass. Create a graph while the friction is on or off.

Adjust the mass of one of the balls to see how the other objects are affected in the animated Newton's Cradle.

Adjust the elasticity and mass of a rope suspended between two points to see how it will be affected by gravity.

[Free Registration/Login Required] In the mole carnival, students count the number of atoms and particles in different objects found at the carnival. As students work to find the number of particles, they practice counting particles by...