Stoichiometry Unit 3 Part 3 Extra Credit

Front

What is Stoichiometry?

Back

Stoichiometry is the branch of chemistry that deals with the calculation of reactants and products in chemical reactions.

Front

What is a Limiting Reactant?

Back

The limiting reactant is the substance that is completely consumed in a chemical reaction, limiting the amount of product formed.

Front

How do you identify the Limiting Reactant?

Back

To identify the limiting reactant, compare the mole ratio of the reactants used in the reaction to the mole ratio from the balanced equation.

Front

What is an Excess Reagent?

Back

An excess reagent is a reactant that remains after a chemical reaction has completed.

Front

What is the mole ratio in a balanced equation?

Back

The mole ratio is the ratio of moles of one substance to the moles of another substance in a balanced chemical equation.

Front

Given the reaction 4NH3 + 6NO -> 5N2 + 6H2O, how many liters of NH3 are needed to react with 30.0L of NO?

Back

20.0 L of NH3 are needed.

Front

In the reaction 2 Al + 3 Cl2 -> 2 AlCl3, if you have 2 moles of Al and 2 moles of Cl2, which is the limiting reactant?

Back

Cl2 is the limiting reactant.

Front

In the reaction Mg + 2HCl -> MgCl2 + H2, if you have 6.00 g of HCl and 5.00 g of Mg, which is the limiting reagent?

Back

HCl is the limiting reagent.

Front

If you have 10 pieces of bread, 4 tablespoons of peanut butter, and 20 tablespoons of jelly, what is the limiting reactant for making a sandwich?

Back

Peanut butter is the limiting reactant.

Front

What is the purpose of Stoichiometry in chemistry?

Back

Stoichiometry allows chemists to predict the quantities of substances consumed and produced in a given reaction.