Mole Concept and Some Basic Concepts of ChemistrymediumMCQ SINGLE

If 1 12 moles of oxygen combine with Al to form , the weight of Al used in the reaction is (Al = 27)Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

Question

If 1 12 moles of oxygen combine with Al to form $Al_2O_3$, the weight of Al used in the reaction is (Al = 27)

Answer: B

💡 Solution & Explanation

Balanced chemical reaction is 2 2 3 3 2 2 Al O Al O -> From the above reaction we know that, 2 Moles of Al combines with 3 1 . .1 2 2 i e moles of 2 O 1 mole of Al weights 27g 2 moles of Al will weigh = 2 27 54g x The correct option is (b)

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