Grade 11 General Chemistry 1

1. LIMITING AND EXCESS
REACTANT

2. Limiting and Excess
Reagent

3. Stoichiometric Calculations
In such cases, the reactant which is allowed to
be used up in a reaction is called a limiting
reagent, so called because it limits the
maximum amount of products that can be
formed.
On the other hand, a reactant used in excess in
a reaction is called excess reagent.

4. Stoichiometric Calculations

5. Stoichiometric Calculations

6. Stoichiometric Calculations

7. Stoichiometric Calculations

8. Stoichiometric Calculations

9. Identifying the Limiting and Excess
Reagents

10. Sample Problem 1

11. Sample Problem 2

12. Board work:
1) When copper (II) chloride reacts with sodium
nitrate, copper (II) nitrate and sodium chloride are
formed.
a) Write the balanced equation for the reaction
given above:
CuCl2 + NaNO3  Cu(NO3)2 + NaCl
b) If 15 grams of copper (II) chloride react with 20
grams of sodium nitrate, how much sodium chloride
can be formed?

13. Board work:
c) What is the limiting reagent for the reaction in #2?
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d) How many grams of copper(II) nitrate is formed?
e) How much of the excess reagent is left over in
this reaction?