Question

How many atoms of 84g are there in ammo mom Nitrate

Answer 1

I don't know about ammo mom Nitrate.

Could you mean ammonium nitrate, NH4NO3? If so,
mols = grams/molar mass = 84/80 = 1.05
How did I get 80 for the molar mass. Look at the periodic chart. I have rounded but N + 4*H + N + 3*O = 9 atoms
14 + 4*1 + 14 + 3*16 = 80
So you have 1.05 mols NH4NO3. There are 9 atoms in 1 molecules so you have 1.05 mols NH4NO3 or 1.05 x 9 = 9.45 mols of atoms.There are 6.02E23 atoms in 1 mol so there must be 6.02E23 x 9.45 = ? total atoms.