Stoichiometry Exam Study Chapter 9
Mole ratios needed to solve a stoichiometry problem
A balanced chemical equation explicitly provides you with what?
Stoichiometry
Deals with the mass relationships of elements in compounds
Both the mole ratio of the unknown substance to the given substance and the molar mass of the unknown substance
In a stoichiometry calculation to determine the mass of one substance that will react with a given amount, in moles, of a second substance you need to know what?
Relate the mass of a substance to the amount in moles of that substance
In stoichiometry, molar mass is used to what?
Reaction Stoichiometry
Involves the mass relationships between reactants and products in a chemical reaction
Mole Ratio
Is a conversion factor that relates the amounts in moles of any 2 substances involved in a chemical reaction
Theoretical Yield
Is the maximum amount of product that can be produced from a given amount of reactant
Limiting Reactant
Is the reactant that limits the amounts of the other reactant that can combine and the amount of product that can form in a chemical reaction
Mass of reactant to moles of reactant, moles of product to mass of product, and mass of product to moles of product.
Molar mass can be used to relate what?
the periodic table
Molar masses are determined from what?
The law of conservation of mass
Reaction stoichiometry is based on chemical equations and what?
Mass Relationships
Stoichiometry is the branch of chemistry that deals with elements in compounds and with reactants and products in chemical reactions
Molar Mass
The conversion factor used to convert from grams to moles is what?
Actual Yield
The measured amount of a product obtained from a reaction
3
The number of conversion factors needed to solve a mass to mass is ??
The number of significant figures of any measured quantities in the problem
The number of significant figures in an answer to a stoichiometry problem is determined by what?
Percentage Yield
The ratio of the actual yield to the theoretical yield, multiplied by 100.
Excess Reactant
The substance that is not used up completely in a reaction
Mass to mass conversion
The type of stoichiometry problem that involves the most steps is a ??
All reactants are completely converted into products
When a chemical reaction is carried out under ideal conditions, it is implied that?
the mass ratio
Which information is not needed to solve a mass to mass calculation?
