AQA triple science higher chemistry calculations

How to calculate the atom economy

(Coefficient x relative formula mass of desired products/ relative formula mass of all reactants) x100

How to calculate the moles

Moles=Mass / Mr

How to calculate the percentage yield

percentage yield = actual yield/theoretical yield x 100

How to calculate the concentration (mol/dm3)

Concentration (g/dm3) / mr

How to calculate concentration (g/dm3)

Mass of solute (g) / volume of solution (dm3)

How to calculate the volume of a gas (dm3)

Mass of a gas (g)/ mr of a gas x 24

How to calculate the number of moles in solution

Concentration x (volume of solution (cm3) /1000)

How to calculate the volume of a gas

Number of moles x 24dm3

How to calculate percentage mass of an element in a compound

Ar x number of atoms of that element / Mr of the compound x 100