__What is Stoichiometry?__

- it's the study of the relationship between the number of reactants needed to produce the product and the amount of product produced

__What does it do?__

- it allows us to find out the mole ratio in an equation

- mole ration tells us the ratio of the molecules or moles in a substance

- the numbers in the ratio = the numbers in front of the chemicals in a balanced equation

__Sample questions that deal with Stoichiometry__

1) 3NO

_{2}+ H

_{2}0 --> 2HNO

_{3}+ NO

How many grams of nitrogen dioxide are required in this reaction to produce 5.00 g HNO

_{3?}

_{ans. }5.48g

2 )CO + 2H

_{2}--> CH

_{3}OH

If the reaction has 35.4 g of CO and 10.2 g of H

_{2}how many grams of CH

_{3}OH will be produced?

ans. 40.5

3) 2N

_{2}O

_{5}--> 4NO

_{2}+ O

_{2}

If a sample of N

_{2}O

_{5}produces 1.618 g of O

_{2}, how many grams of NO

_{2}are formed?

ans.9.304g

_{This is a tutorial on dealing with Stoichiometry. Enjoy! }

-Catherine

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