Stoichiometry Flashcards
What is Stoichiometry?
Allows us to predict amount of products formed in a chemical reaction, based on amount of reactants.
What does molar mass allow you to do/find?
Can calculate mol of A from mols of B, mass of A from mass of B, etc. (MassA>MolsA>MolsB>MassB)
What is a limiting reactant? What can it predict?
The reactant that limits the amount of product in a Chemical Rxn.
Theoretical Yield:
The theoretical amount of product that can be made based on the amount of Limiting reactant.
Actual Yield:
The true amount of product from produced by the chemical Rxn.
Percent Yield:
Actual Yield/ x100
Theoretical Yield
What are solutions?
A homogeneous mixture of 2 substances.
Solvent VS. Solute?
A solvent is the majority component of the mixture, when the solute is the minority component.
What is Molarity? Formula?
Molarity is a way to express solution concentration.
M=amount solute(mol)/Volume of Solution(in L)
What is Molarity used for mostly?
converting Mol->L,L->Mol
What is diluting a solution? Fomula?
When you add water to a concentrated solution.
M1V1=M2V2.
ONLY use on dilution solutions!!! FYI
Combination Rxn:
A+B—>AB
when 2< elements/compounds combine to form single product
Decomposition:
ABC-heat–>A+BC
requires heat to compose the mixture into several elements/compounds.
Combustion!
Rxn of substance(s) with O2 to form 1< Oxygen containing compounds.
AALWAYS forms H2o and CO2
Single Replacement Rxn:
A+BC—>B+AC
Alkali and Alkali earth are most reactive elements!
the LEAST reactive element is always alone!!!
