Question

(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 ?

Answer 1

(a) 6.022 × 10²³ atoms 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.