RachalOZD7411 RachalOZD7411

20-09-2018
Chemistry

contestada

Find the average atomic mass of the element, given the isotopic percentage of 75.0% for cl35 and 25.0% for cl-37.

Respuesta :

kenmyna kenmyna

29-09-2018

The average atomic mass of the element = 35.5

calculation

average atomic mass = sum of the masses of its isotope each multiplied by its natural abundance.

that is

[(75 x35) +(25 x37)] /100 = 35.5

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