Analytical ChemistryHard

Question

27 g of aluminium react completely with how many grams of oxygen ?

Options

A.8g
B.16g
C.32g
D.24g

Solution

2Al + 3/2O2 → Al2O3
i.e., 2 × 27g Al = × 32gO2
or 27g Al = = 24g O2

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