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Verified Answer & Explanation⌄

Correct Answer: B) 20 g

Concept Explanation

23 g Na = 1 mol Na and can release 1 mol electrons. Each Ca atom can release 2 electrons. Therefore, 0.5 mol Ca releases 1 mol electrons. Mass of 0.5 mol Ca = 20 g.

Topic: Mole Concept and Electron StoichiometryPractice more Mole Concept and Electron Stoichiometry MCQs →