Stoichiometry
The Mole
Percent Yeild
Limiting Reactants
Mole ratios
Molar mass of elements vs. compounds
"Little Map": the stoichiometric relationship between 1 substance in a chemical reaction
"Big Map": the stoichiometric relationship between 2 different substances in a chemical reaction
ratio between the amounts in moles of any two compounds involved in a chemical reaction
used as conversion factors between products and reactants in many chemistry problems
Compounds: atomic mass x number of atoms of that element in the compound
Mole
PT
A's #
22.4
Volume (L)
Particles
Mass(g)
1 step or 2 step, used by traveling along lines of the 'map'.
Definitions
Stoichiometry - is a section of chemistry that involves using relationships between reactants and/or products.
Mole - The mass of substance containing the same number of fundamental units as there are atoms in exactly 12.000 g of 12C
Avagadros # - 6.02 x 10^23
Molar mass
Molar volume: the volume occupied by one mole of a substance (chemical element or chemical compound) at a given temperature and pressure.
Mole Ratio: the ratio between the amounts in moles of any two compounds involved in a chemical reaction.
Coefficent - the number in front of a chemical species
Significant Figures: digits that carry meaning and contributes to its measurement
Used in big map from moles/volume/particles of one substance to moles/volume/particles of another
Used to be able to count particles by massing them
Used in little map and big map conversions
Ex. the mass of 6.02 x 10^23 molecules of water in 18.02
Used to find out how much of a substance we will have in a chemical reaction based on the amount of reactants
Used in little map and big map from mole/particles to particles/moles
Little map and its reflection
Used for finding mass/ volume/ particles of one substance from another substance
Mole
Percent yield- the ratio of actual yield to the theoretical yield. It is calculated to be the experimental yield divided by theoretical yield multiplied by 100. Usually less than 100%
Mole
Particles
Volume (L)
Volume (L)
Theoretical yield- amount predicted in a stociometric calculation based on the number of moles of the reactants
Mass(g)
Particles
Mass (g)
Excess reactant- the reactant in a chemical reaction with a greater amount than necessary to react completely with the limiting reactant.
Limiting reactant- is the substance that is totally consumed when the chemical reaction is complete
Equimolar- the same amount of moles
Actual yield- the actual amount of product made in an expirament