27 g al will react completely with oxygen equals to
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The balanced equation for the given reaction is:
4 Al + 3 O2 --------> 2 Al2O3
Atomic mass of Al = 27g
Atomic mass of O2 = 2 × 16 = 32g
Mole ratio of aluminium and oxygen can be given as:
Al : O2
4 : 3
1 : 3/4
Mass of O2 required = 3/4 × 32 =24g
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