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MHT CET Chemistry question

ChemistrySome Basic Concepts of ChemistryMHT CET

molecules are removed from 200 mg of . The moles of left are

Answer: (A)

Solution

Initial moles = 0.200/44 = 4.55 × 10⁻³; removed = 10²¹/6.022×10²³ = 1.66 × 10⁻³; left = 2.88 × 10⁻³

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Question ID VK-041136