Stoichiometry

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) 3NO₂ + H₂0 --> 2HNO₃ + NO
How many grams of nitrogen dioxide are required in this reaction to produce 5.00 g HNO_3?
ans. 5.48g

2 )CO + 2H₂ --> CH₃OH
If the reaction has 35.4 g of CO and 10.2 g of H₂ how many grams of CH₃OH will be produced?
ans. 40.5

3) 2N₂O₅ --> 4NO₂ + O₂
If a sample of N₂O₅ produces 1.618 g of O₂, how many grams of NO₂ are formed?
ans.9.304g


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

-Catherine