Answer: The isotopic abundance of Cl- 37 is 0.2424.
Explanation:
Mass of isotope - 35 = 34.96885 amu
% abundance of isotope -35= x% = [tex]\frac{x}{100}[/tex]
Mass of isotope - 37 = 36.9659 amu.
% abundance of isotope-37 = (100-x)% = [tex]\frac{100-x}{100}[/tex]
Formula used for average atomic mass of an element :
[tex]\text{ Average atomic mass of an element}=\sum(\text{atomic mass of an isotopes}\times {{\text { fractional abundance}})[/tex]
[tex]35.453=\sum[(34.96885 \times \frac{x}{100})+(36.9659 \times \frac{100-x}{100}]][/tex]
[tex]x=75.76\%[/tex]
[tex](100-75.76)=24.24\%=0.2424[/tex]
Therefore, the isotopic abundance of Cl- 37 is 0.2424.
