Question

Calculate the number of molecules in 36g of H2O​

Answer 1

Answer:

So, the no. of molecules of H2O present in 2 moles of H2O = 2×6. 022×1023=1.

Answer 2

Answer:

Molar mass of H2O = 18 g

No. of molecules present in 1 mole of H2O = 6.022×1023

No. of moles of H2O = 1836=2

So, the no. of molecules of H2O present in 2 moles of H2O = 2×6.022×1023=1.2044×1024