Question

Which of the following contains least number of molecules ? 1) 52g of N2O5 , 2)36g of H2O , 3)28g of CO , 4)51g of NH3​

Answer 1

Answer:

i.e. 52g OF N2O5

Explanation:

no. moles = given mass/molecular mass

1) IN N2OS =52/123=0.42

2) IN H20=36/18=2

3) IN CO =28/28=1

4) IN NH3=51/17=3