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The Flinn’s Exploring Chemistry™—Molar Relationships and Stoichiometry Package includes two demonstrations, an experiment and a POGIL™ activity to analyze the connectivity of properties of matter to atoms and molecules.

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The mole concept is a bridge connecting the macroscopic properties of matter to the submicroscopic world of atoms and molecules. Students need these connections to succeed in chemistry! Package includes two demonstrations, a beautiful experiment and a POGIL™ activity—everything you need to teach stoichiometry!

• Pictures are worth a thousand words, and the Stoichiometry and Solubility demonstration paints a perfect picture to visualize mole ratios in two different precipitation reactions.
• Follow up with the Mole Ratios experiment to crystallize the concept for students. Silver crystals forming on copper wire in a blue solution are not just beautiful chemistry; they give accurate results every time.
• Take the concept to the next, higher level with the Limiting and Excess Reactants POGIL activity.
• Wrap up the unit and have fun doing the Stoichiometry Balloon Races demonstration. Compare the amount of carbon dioxide filling up various balloons when acetic acid reacts with sodium bicarbonate.

Includes chemicals, specialized materials and complete instructions as well as free online video resources for three classes of 30 students working in pairs. Common laboratory equipment is required and available separately.