Question

How many molecules of NH3 contains 1/2 mole of electrons

Answer 1

mole will have 6.02*10^23 molecules. Therefore 2 moles will have 1.204*10^24 molecules of NH3. There are 4 atoms in each molecule, so 2 moles will have 4*(1.204*10^24) atoms which is 4.816*10^24 atoms. By putting these values in above mole formula the answer obtained is 12.04 x 10^23 atom in 2 moles of NH3. .