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Specific Heat Capacity

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Calculate the average atomic weight of Fe if abundance of isotopes 54Fe,56Fe and 5Fe are5%, 90%, 5% respectively.

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Q. Given that the abundances of isotopes

^{54} F e,^{56} F e

^{57} F e

5 %, 90 %

5 %

respectively, the atomic mass of

F e

Q. Given that the abundance of isotopes

^{54} F e,^{56} F e,

^{57} F e

is 5%, 90% and 5%, respectively. The atomic mass of Fe is
(IIT-JEE, 2009)

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

Given that the abundances of isotopes $^{54} F e$ , $^{56} F e$ and $^{57} F e$ are 5 % , 90 % and 5%.

Respectively,the atomic mass of Fe is

Q. The relative abundance of two rubidium isotopes of atomic weight 85 and 87 are 75% and 25% respectively. The average atomic weight of rubidium is ?
a)75.5 b)85.5
c)87.5 d)86.5

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