Calculate the atomic mass (average) of chlorine using the following data :

Explanation

Average atomic mass of chlorine can be obtained by averaging the relative atomic masses of its isotopes in the ratio of their abundance. Thus, Average atomic mass of chlorine.
`=((34.9689 xx 75.77) + (36.9659 xx 24.23))/(75.77 + 24.23)`
=35.4527 amu