Some Basic Concepts Of Chemistry Question 18

Question: Given that the abundance of isotopes 54Fe , 56Fe and 57Fe is 5%, 90% and 5%, respectively. The atomic mass of Fe is

Options:

A) 55.85

B) 55.95

C) 55.75

D) 55.05

Show Answer

Answer:

Correct Answer: B

Solution:

The atomic mass of iron is =(5×54)+(90×56)+(5×57)100=55.95



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