Answer : The maximum amount of magnesium oxide produced can be, 5.3 grams.
Solution : Given,
Mass of Mg = 3.2 g
Mass of = 12.0 g
Molar mass of Mg = 24 g/mole
Molar mass of = 32 g/mole
Molar mass of MgO = 40 g/mole
First we have to calculate the moles of Mg and .
Now we have to calculate the limiting and excess reagent.
Synthesis reaction : It is defined as the reaction in which the two smaller molecule combined to give one larger molecule.
The balanced chemical reaction is,
From the balanced reaction we conclude that
As, 2 mole of react with 1 mole of
So, 0.133 moles of react with moles of
From this we conclude that, is an excess reagent because the given moles are greater than the required moles and is a limiting reagent and it limits the formation of product.
Now we have to calculate the moles of
From the reaction, we conclude that
As, 2 mole of react to give 2 mole of
So, 0.133 moles of react to give 0.133 moles of
Now we have to calculate the mass of
Therefore, the maximum amount of magnesium oxide produced can be 5.3 grams.