Question

Calculate the number of molecules, Hydrogen atoms and Oxygen atoms present in 1.8 g H2O. [H = 1, O = 16]​

Answer 1

Answer:6.022 x 10^22

Explanation: first find out the number of moles which is given mass/molecular mass and we get 0.1 moles. multiply this with the avogadro number cause the number of molecules is avogadro number x no. of moles