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definition of relative atomic mass
average mass of an atom of an element, compared to the mass of a carbon atom (12)
relative atomic mass found in periodic table.
relative formula mass
atomic masses for each of the elements in the compound, added together
percentage of an element in a compound
% = RAM/RFM of compound x 100
mr, mass and moles
mass = mr x mol
(triangle)
percentage yield
% yield = (actual yield/expected yield) x 100
empirical formula
simplest whole number ratio between atoms…
number of moles
divide by smallest mole
calculate ratio
water of crystallisation
mass
moles
ratio
limiting reagents
balance equation
moles of reactant
ration of reactants (choose one reactant and work out number of moles of other reactants needed.)
identify limiting reagent
rate
change in reactant/time
energy transferred
specific heat capacity x mass of water x temp. difference
enthalpy value/energy change
energy transferred/moles fuel burnt
moles, volume, and concentration
mol = volume x concentration
Note 
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