Question

One mole of chlorine gas is equal to how many grams?

Answer 1

`mass=71 g`

Explanation:

apply the `mols=(mass)/(ar)` where ar is the atomic relative mass.
So it tells us that is chlorine gas and the Ar will be 71 instead of 35.5
as it is `Cl_2`
now
`mol=1`
`Ar=71`
`mass=?`
`1*71=mass`
`mass=71 g`