Question

1.7gm NH3 contains how many molecules of NH3

Answer 1

17g of NH3 has=6.022×10^23 molecules
so,
1.7g of NH3 will have=
$(6.022 \times {10}^{23} \div 17) \times 1.7$
it will come out=6.022×10^22

Answer 2

(6.022*10^23)molecules and weight 1.7gm