Question

Find the no. of molecules in 100g of NH3

Answer 1

find no. of moles and then no. of molecules

Answer 2

mass of NH3 = 17 ( 14 + [1*3] )

NUMBER OF MOLE IN 100G OF NH3 = 100/17  =  0.17

THEREFORE NO. OF MOLECULES IN 100G OF NH3 = 6.022*10(23) * 0.17 =

1.02374*10 (23)