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What is relative molecular mass?
The average mass of a molecule on a scale where an atom of carbon 12 is 12.
What is Empirical Formula?
'The lowest whole number ratio of all atoms in a molecule' OR 'the smallest molecular formulae of this compound'
What is relative atomic mass?
The average mass of an element compared to the one-twelfth of the mass of a single carbon-12 atom
State what is meant by the term one mole of molecules
Avogadro's constant
How do you show Avogadro's constant
(mass of one mol of a molecule)/(mass of one atom of that molecule)
How to work out concentration?
mole/volume
Name the moles, mass mr equation
Note 
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