What do you understand by the terms mole and Avogadro's number.Explain with suitable examples.
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Avogadro's number is an absolute number: there are 6.022×1023 elementary entities in 1 mole. ... The mass of one mole of a substance is equal to that substance's molecular weight. For example, the mean molecular weight of water is 18.015 atomic mass units (amu), so one mole of water weight 18.015 grams.
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