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How do you calculate relative atomic mass of an atom?
Ar= (mass number x abundance)+(mass number x abundance)/ abundance+abundance
OR
Ar= total mass of atoms/total number of atoms
How do you find the relative formula mass?
Add up all of the relative atomic masses
What is Avogadro's constant?
6.02×10²³
What is the calculation for moles (mol)?
Moles= mass/relative formula mass
OR
n=m/Mr
What is meant by a limiting reagent
The reactant that gets consumed first in a chemical reaction and therefore limits how much product is made
What is titration?
A technique used to find the concentration of an uknown solution
What is the equation for percentage yield?
Actual yield/theoretical yield
Why is percentage yield less than 100%?
Not all reactants react
Side/unwanted reactions may take place
Lost during completion e.g. filtering
What is the equation for atom economy?
Mr of desired products/sum of Mr
What is the volume of 1mol of gas?
24dm³ or 24,000cm³
What is the calculation for mass/moles?
Mass/moles = concentration x volume
How do you convert dm³ to cm³?
x 1000
How do you convert cm³ to dm³ ?
÷1000
How do you convert mol/dm³ to g/dm³ ?
x by Mr of the reactant
Note 
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