Question

How will u express no.Of particles in terms of moles?

Answer 1

No. of moles = Given no. of particles / Avogadro's no.

Answer 2

) How do we express number of particles in - terms of moles?

(ii) Calculate the number of moles of sodium in a sample containing 1020 atoms of sodium.

(iii) How do we express mass of a substance in terms of moles?

(iv) Calculate the number of moles in

(a) 56 g of He (b) 23 g of Na