Find the empirical formula of a compound containing 52.93% aluminum, 47.84% oxygen. What is the molecular formula if the molar mass is 102 g/mole?
a. Al₂O₃, Al₂O₃
b. Al₃O₂, Al₆O₄
c. AlO₃, Al₂O₆
d. Al₂O₃, Al₄O₆