Question

Calculate atomic mass of chlorine using data
% Abundance. Molar mass
35cl 75.77 34.96
37cl 24.23 36.96​

Answer 1

Answer:

Fractional Abundance of 35Cl =  0.7577 and Molar mass = 34.9689

Fractional Abundance of 37Cl =  0.2423 and Molar mass = 36.9659

∴ Average Atomic mass = (0.7577×34.9689)amu + (0.2423×36.9659)

= 26.4959 + 8.9568 = 35.4527

Explanation: