Magnesium metal burns in air to form a mixture of magnesium oxide (MgO, M = 40.31) and magnesium nit — Stoichiometry Chemistry Question
Question
Magnesium metal burns in air to form a mixture of magnesium oxide (MgO, M = 40.31) and magnesium nitride (Mg3N2, M = 100.95). A 1.000 g sample of magnesium ribbon is burned in air to give 1.584 g of the oxide/nitride mixture. What percentage of the magnesium is present in the form of the nitride?
A.
9.00%
B.
11.0%
C.✓ Correct
27.1%
D.
90.3%
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