Explain with examples what is meant by a ‘mole’ of a substance. – InterviewSolution

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1.	Explain with examples what is meant by a ‘mole’ of a substance.
Answer» A mole is that quantity of a substance whose mass in grams is equal in magnitude to the molecular mass of that substance in Daltons. For example: Atomic mass of oxygen atom (O) is 16u. Thus, the molecular mass of oxygen molecule (O₂) is 16 x 2 = 32u. Therefore, 32 g of oxygen is 1 mole of oxygen.

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