Calculate the following
Number of atoms in 7.46 g Li

Calculate the following Number of atoms in 32.0 g Br_2

Calculate the following Number of molecules in 43 g NH_3

Calculate the number of moles of atoms in 10.2 g of sodium.

Calculate the number of atoms and volume of 1g helium gas at STP

Calculate the number of He atoms in (i) 52 u, (ii) 52 g, (iii) 52 moles of He. Atomic weight of He is 4u.

Calculate the number of atoms in a cubic-shared unit cell having one atom on each corner and two atoms one each diagonal.

Calculate the molecular mass of an atom.

Calculate the number of particle in 46 g of Na atoms (number from mass)

Calculate the number of atoms per unit cell of CCP.