Essential Chemistry for IGCSE - Chemical Calculations (Section 2 - No. 15)
In the magnesium oxide experiment, what calculation is done after weighing the magnesium and weighing the magnesium oxide?
Find the volume of the oxygen.
Calculate the mass of oxygen gained.
Calculate the total mass of the crucible.
Find the ratio of moles in the compound.
Explanation
The mass of oxygen gained is found by finding the difference in mass.
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