the quantity of particles- electron, atoms,
molecules ,ions, formulae...1 mol=
6.023x10^23mol^-1 particles = the number of
atoms in 12g of c-12 isotopes
Avogadro constant, L
L= the number of particles in 1 mole =6.023x10^23mol^-1
Ar, Mr AND THE MOLE
1 mole f an element or compound in g
equations that relate the 3
n=m/Mr
m=nMr
Mr=m/n
conversionn tip...... 1cm^3=1/1000
empirical formula
the simplest whole
number ratio of the
atom of each element in
a compound
calculating EF
divide % of each element by the Ar to give mole
then then divide all by smallest number and round
up
molecular formula
the actual number of atoms of each element in a
molecule or the number of oles of each type of
atom in 1 mole of the compound
relating empirical formula
to molecular formula...the
Mr of the molecular
formula is an multiple of
the Mr of the empirical
formula
ionic equatoins
balance numbers and charge
balance equation
balance numbers
the ideal gas equation
pV=nRT
V=nRT/p
n=pV/RT
units....p in Pa vim m^3 n in mole t in K r=
a gas constant=273 k=0 degrees and
1cm^3=1x10^-6m63
property of ideal gas
no intermolecular forces
% atom economy
% atom economy=mass of desired product/total mass of all reactants x100%
low %= more product needs to be sold to make max profilt
% yield
% yield=mass of product/ theoretical max mass of product x 100%