Question

Isotope: 35 AMU: 34.968852 % Abundance: 75.77; Isotope: 37 AMU: 36.965903 % Abundance: 24.23 The two isotopes for Cl are chlorine-35 and chlorine-37. What is the average mass for Cl up to 4 decimal places?

Answer 1

Hi there ,,

☆ Cl35 share is

34.9688× 75.77÷ 100= 26.4958 amu

☆ Cl37 share is

36.9659 × 24.23 ÷ 100 = 8.9568 amu

☆ The atomic mass of Cl

35.19148 amu

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