(a) How many atoms are there in exactly 12 g of carbon -12 element? (C = 12 u)(b) What name is given to this number?(c) What name is given to the amount of substance containing this number of atoms?

Academic Chemistry NCERT Class 9

(a) 6.022 × 10²³atoms are present in 12g of carbon-12 element.

(b) The name given to this number is Avogadro’s number.

(c) A substance containing 6.022 × 10²³ number of atoms is called 1 mole of that substance.

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Updated on: 10-Oct-2022

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