Interpretation:
The amount of the oxygen needs to be determined.
Concept introduction:
In a

Answer to Problem 8PP
The amount of oxygen reacted in this reaction is
Explanation of Solution
The given mass of the magnesium is
So for the amount of oxygen −
Mass of product = Mass of reactant
Mass of product = mass of magnesium
Mass of magnesium oxide = mass of magnesium
For the calculation of mass of oxygen
Mass of oxygen = Mass of magnesium oxide − Mass of magnesium
The given amount of magnesium and oxygen participated in the formation of magnesium oxide, and the amount of magnesium and magnesium oxide is given so the amount of oxygen calculated easily.
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