Question

Find the number of atoms present in 3.5mg cholrine gas

Answer 1

Answer:

Explanation:

1 mole of clorine has 35.5g

The easiest method to find the no.of atoms is

Number of moles x Avogadro number

We know that 1 mole is 35.5

So 3.5 is 0.1 mole

So no of atom = 0.1x(6.022x10^23)

                      =6.022x10^22 atoms