Serve up a rate of percents. The Math at the Core resource investigates the percent of daily value of sodium and saturated fats in different foods. Pupils determine the number of serving sizes they eat of popular snack foods and...

Start stoichiometry scholars off on the path to success with a short video. The narrator of this interesting video guides viewers through the concepts of the mole, molar mass, and Avogadro's number. Additional topics include converting...

What is a mole? How do you convert moles to grams, as well as from grams to moles? Check out this short video to find the answers to these and other pressing questions.

This lesson demonstrates how to convert from grams to particles (molecules, atoms, ion). It is 1 of 2 in the series titled "Converting from Grams to Particles."

This lesson demonstrates how to convert from particles to grams (molecules, atoms, ion). It is 1 of 2 in the series titled "Converting from Particles to Grams."

Sal Khan solves word problems involving mass and estimating mass. [4:00]