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Approximate atomic weight of an element ...

Approximate atomic weight of an element is `26.89`. If its equivalent weight is `8.9`, the exact atomic weight of element would be

A

26.7

B

8.9

C

26.89

D

17.8

Text Solution

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The correct Answer is:
A
Approximate atomic weight =26.89
Equivalent weight = 8.9
Approximately valency = Approx. atomic weight/Equivalent weight
` = (36.87)/(8.9) = 3.0`
Atomic weight = Valency x Equivalent weight = 8.9 x 3.0 = 26.7
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