Question

The total number of atoms of all elements present in one mole of ammonium dichromate is

Answer 1

As the compound specified in the question is NH4Cr2O7, consisting of 4 molecules of H, 1 of N, 2 of Cr and 7 of O,

1 mol of NH4Cr2O7= 6.023x10^23 molecules of NH4Cr2O7

and each molecule has 4+1+2+7=14 atoms,

the total molar no.of atoms for ammonium dichromate is: 14x6.023x10^23