if 1.5 moles of oxygen combine with Al to form Al2O3 , the mass of Al in gram used in this reaction (atomic mass of Al =27)

if 1.5 moles of oxygen combine with Al to form Al2O3 , the mass of Al

1.	if 1.5 moles of oxygen combine with Al to form Al2O3 , the mass of Al in gram used in this reaction (atomic mass of Al =27)
Answer» 4Al + 3O2 ---> 2Al2O31mole O2 = 32G * 1.5mole = 48G * 2 = 96gAl2O3 = 101.96G/mole * 2 = 203.92g203.92g - 96g O2 = 107.92g.Therefore,The weight of AL in the reaction of 1.5moles of O2 is 107.92g