Chapter 9: Stoichiometry

Stoichiometry

Reaction Stoichiometry – video featuring the work of German chemist Jeremias Richter, who discovered he could quantify the amount of substances consumed or produced by a chemical reaction.

http://www.chemcollective.org/stoich/reaction_stoi.php

(Main Idea: Ratios of substances in chemical reactions can be used as conversion factors.)

Stoichiometry – video discussing the principles of stoichiometry, including the law of conservation of mass and calculating the expected mass of the products of chemical reactions.

http://www.brightstorm.com/science/chemistry/chemical-reactions/stoichiometry/

(Main Idea: Ratios of substances in chemical reactions can be used as conversion factors.)

Stoichiometry – interactive activity to predict the amount of gas produced by a given chemical reaction.

http://www.wisc-online.com/Objects/ViewObject.aspx?ID=GCH1504

(Main Idea: Balanced equations give amounts of reactants and products under ideal conditions.)

Product Formation and Percent Yield – video tutorial on calculating the expected products from given amounts of reactants, and comparing the actual amount to the expected amount – the percent yield.

http://www.chemcollective.org/stoich/percentyield.php

(Main Idea: Comparing the actual and theoretical yields helps chemists determine the reaction’s efficiency.)

Limiting Reactants – Understand limiting reactants by making sandwiches…that’s right, by making sandwiches.

http://phet.colorado.edu/en/simulation/reactants-products-and-leftovers

(Main Idea: One reactant limits the product of a reaction.)