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Sagot :
Answer: The isotopic mass of the other isotope is 38.16 amu
Explanation:
Mass of isotope X-37 = 37.24
fractional abundance of isotope X-37 = 0.7721
Mass of isotope X-38 = ?
fractional abundance of isotope X-38 = (1-0.7721)= 0.2279
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]37.45=\sum[(37.24\times 0.7721)+(x\times 0.2279)][/tex]
[tex]x=38.16[/tex]
Therefore, the isotopic mass of the other isotope is 38.16 amu
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