MHT CET Chemistry question

The number of atoms in 3.2 g of oxygen gas are:

Answer: (C)

Solution

3.2 g O₂ = 0.1 mol of O₂ = 0.2 mol atoms = 0.2 × 6.02 × 10²³ = 12.04 × 10²² atoms; (a) counts

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Question ID VK-041179