Question

calculate the mass of 1.5g molecules of NH3
calculate the number of moles for 1 atom of silver

Answer 1

Mass of 1.5 g molecules of NH3 = 17 × 1.5 = 25.5g
no. of moles for 1 atom of Ag = 1/ 6.022× 10
${10}^{23}$
= 0.166×
${10}^{ - 23}$