Question

Calculate the average isotopic mass of Cl.

Answer 1

Solutions :-

To Change the percentages to their decimal forms:

24.47%=24.47/100=0.2447

75.53%=75.53/100=0.7553

Multiply the mass of each isotope by its percent abundance and add. The symbol u is used for atomic mass units.

0.2447(36.9590 u)+0.7553(34.96885 u)
=35.46 u

Thanks

@Anushka