Some Basic Concepts Of Chemistry Question 34
Question: Indium (atomic mass = 114.82) has two natural occurring isotopes, the predominant one four has isotopic mass 114.9041 and abundance of 95.72%. Which of the following isotopic mass is the most likely for the other isotope?
Options:
A) 112.94
B) 115.90
C) 113.90
D) 114.90
Show Answer
Answer:
Correct Answer: A
Solution:
[a] Let atomic weight of other isotope is M $ 114.82=\frac{114.9041\times 95.72+M\times 4.28}{100} $ $ M=112.94 $
