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Stoichiometry Mole Concept and Mass Comparison

1

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Consider: I. 2.5 mol CH₄ II. 22.4 dm³ O₂ at STP III. 6.02 × 10²² C atoms IV. 3.5 mol He What is the increasing order of their masses?

Verified Answer & Explanation⌄

Correct Answer: C) III < IV < II < I

Concept Explanation

I: 2.5 × 16 = 40 g II: 1 mol O₂ = 32 g III: 0.1 mol C = 1.2 g IV: 3.5 × 4 = 14 g Therefore: III < IV < II < I.

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