Question

cl35 is why more informative than cl17

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Answer 1

Answer:

Answer

> The average atomic mass of chlorine is 35.5 amu.

> Chlorine consists of two isotopes : Cl

35

and Cl

37

.

> It's average mass depends on the relative abundance of the two isotopes.

Let x be the relative abundance of Cl

35

then (1-x) is the relative abundance of Cl

37

.

Average atomic mass =

x+(1−x)

x(35)+(1−x)37

35.5=35x+37−37x

1.5=2x

x=0.75

This implies that out of every four atoms of chlorine, there are 3 atoms of Cl-35 and 1 atom of Cl-37. Hence, Cl-35 is more abundant than Cl-37.