Stoichiometry
Part of chemistry that studies amount of substances that are involved in reactions
Mole Ratio
Identify how many moles of product are formed from a certain amount of reactant.
Molar mass
Defined as the mass of given substance divided by its amount of substance
Limiting Reaction
How much of the product is produce
Excess Reaction
what is left over
Theoretical yield
Quantify of a product obtained from the complete conversion of the limiting reactant in chemical reaction
Actual yield
The amount actually produced of a product
Percent yield
Calculated to be the experimental yield divided by the throetical yield multiplied by 100%
Reactant
A substance that takes part in and undergoes change during a reaction
Product
Substance that is formed as the results of a chemical reaction.
explain the concept of mole ratio as used in reaction stoichiometry problems
a.The concept of mole ratio in reaction stoichiometry problems are used as conversion factors from moles of a reactant to another.The ratio is also used to show the balance equation of the reaction occurring. For example, converting moles to grams.
Distinguish between the theoretical yield and actual yield in stoichiometric calculation
Theoretical yield is predict amount and actual yield is the actual amount
what is its role in reaction stoichiometry
The molar mass used to convert between grams and moles
what is the percentage yield of a reaction
The amount over the theoretical amount multiplied by 100.
why are actual yields usually less calculated theoretical yields
The actual is determined by the limited reactant
What is the first thing that must be done in a stoichiometry problem?
Write a balanced equation for the reaction.
How do you know which is the limiting reactant?
Find the limiting reagent by looking at the number of moles of each reactant.