Anhydrous
Containing no water of crystallization (no water)
Hydrated
Compound which contain definite number of moles of water in their structure
Limiting reagent
reactants which is not in excess
Atomic Mass unit (Unified)
one twelfth of an unbound neutral atom of the
carbon-12 isotope in its ground state
Relative Atomic Mass
The weighted average mass of atoms in a given sample of an element compared to the value of the unified atomic mass unit
Relative isotopic mass
The mass of a particular atom of an isotope compared to the value of the unified atomic mass unit
Relative molecular mass
The weighted average mass of a molecule in a given sample of that molecule compared to the value of the unified atomic mass unit
Relative formula mass
The weighted average mass of one formula unit compared to the value of the unified mass unit
Empirical Formula
simplest whole number ratio of the elements present in a compound
Avogadro’s constant
a mole - 6.02 x 10^23 - number of particles in a mole of particles
Molecular formula
shows the number of, and the type of atom in a molecule in a formula C2H6O
Excess Reagent
Too much chemicals
Percentage Yield
Actual Yield/Predicted Yield *100
