2.4 g of magnesium reacts with 1.6 g of oxygen. What is the empirical formula of the oxide formed?
Ar of Magnesium = 24; Ar of Oxygen = 16
number of moles = mass divided by Ar
number of moles of Mg = 2.4/24 = 0.1
number of moles of Oxgen = 1.6/16 = 0.1
ratio of Mg to O = 0.1:0.1 = 1:1 So oxide produced is MgO
KT
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