Limiting reactants practice

Front

What is a limiting reactant?

Back

The reactant that determines how much product can be made.

Front

When does a chemical reaction stop?

Back

When the limiting reactant is used up.

Front

How do you identify the limiting reactant in a chemical reaction?

Back

By calculating the amount of product each reactant can produce and identifying the one that produces the least.

Front

What is the excess reactant?

Back

The reactant that is not completely used up when the reaction stops.

Front

In the reaction 4NH3 + 6NO -> 5N2 + 6H2O, what is the ratio of NH3 to NO?

Back

2:3.

Front

If you have 10g of CH4 and 20g of H2O, how do you find the limiting reactant?

Back

Convert grams to moles using molar mass, then use stoichiometry to determine which reactant runs out first.

Front

What is stoichiometry?

Back

The calculation of reactants and products in chemical reactions.

Front

In a sandwich-making scenario, if you have 10 pieces of bread, 4 tablespoons of peanut butter, and 20 tablespoons of jelly, what is the limiting reactant?

Back

Peanut butter.

Front

What is the molar mass of CH4?

Back

16.05 g/mol.

Front

What is the molar mass of H2O?

Back

18.02 g/mol.