SAQ : If the number of molecules present in 9 g of water is n, what will be the number of molecules in 44 g of carbon dioxide?

Question

If the number of molecules present in 9 g of water is n, what will be the number of molecules in 44 g of carbon dioxide? [H= 1, C = 12, O= 16]. [Ans. 2n]

Answer

The number of molecules in 44 g of carbon dioxide is 6.022 × 10²³, which is twice the number of molecules present in 9 g of water (n), or 2n = 2 × 3.011 × 10²³ = 6.022 × 10²³ molecules.