Lesson 4: Objectives
TOPIC: CHEMICAL EQUATIONS AND STOICHIOMETRY
Purpose:
To continue to show you how to use balanced chemical equations to solve problems involving weight relationships in chemical reactions, particularly limiting reagent problems.
Objectives:
You have completed this lesson when you can:
1. Identify the limiting reagent (and the excess reagent) in a chemical reaction given specified amounts of two reactants.
2. Calculate the amount of a chemical that will react with (or be produced by) a limiting reagent given the necessary information about the weight relationships.
3. Given the amounts of two reactants, use a balanced equation to identify the limiting reagent, calculate the amount of product(s) formed along with the amount of excess reagent used and left over.
Assignments:
To be turned in -
- Online homework
- A written lab report on the composition of magnesium oxide.
Even though there are just a few objectives in this lesson, make sure you spend lots of time practicing limiting reagent problems; this is an area that students often have difficulty.
Outside Reading (optional): Find and read the parts of your text that deal with chemical equations and the calculations that can be derived from them, especially limiting reagents.