How many atoms are present in:

08/03/2023 WNA24 107 Views 0 Comments

How many atoms are present in:

(a) 0.1 mole of sulphur.

Ans: – 1 mole of sulphur has 6.023×10^23 no of molecules.

So, 0.1 mole has 6.023×10^22.

(b) 18.g of water (H2O).

Ans: – 18gm of water means 1 mole of water.

So, as we all know in one mole of water has 6.023×10^23.

(c) 0.44 g of carbon dioxide (CO2).

Ans: – 44g of CO2 has 6.023×10^23.

So, 0.44g of CO2 has 6.023×10^21 no of molecules.