1.9 Calculate the atomic mass (average) of chlorine using the following data:
% Natural Abundance Molar Mass
35Cl 75.77 34.9689
37Cl 24.23 36.9659
To calculate the average atomic mass of chlorine:
Given the fractional natural abundance of with molar mass is and that of with molar mass is .
Therefore we have,
Average Atomic mass of Chlorine: