10. Step 1 - Determine the mass of the empirical formula of Mg3N2.
Molar mass values: Mg = 24.3 g/mol and N = 14 g/mol
(3*24.3) + (2*14) = 100.9 g/mol
Step 2 - Calculate the molecular formula:
100.9 g ---- 1 mol
302.7 g ---- x mol
x = 3
This means that we need 3 minimum formulas to arrive at the molar mass of the compound. So, just multiply the element indices of the empirical formula by 3 to find the molecular formula, which is:
Mg9N6
Answer: Mg9N6
