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How many grams of I(2) are present in a ...

How many grams of `I_(2)` are present in a solution which requires 40ml of 0.11 N `Na_(2)S_(2)O_(3)` to react with it :-
`I_(2)+S_(2)O_(3)^(2-)+2I^(-)`

A

12.7g

B

0.558g

C

12.7g

D

0.558g

Text Solution

Verified by Experts

The correct Answer is:
B
Equivalents of `I_(2)` = Equivalents of `S_(2)O_(3)^(-2)`
`(X)/(254)xx2=NxxV(L)`
`(x)/(127)=(4)/(1000)xx0.11`
`x=0.558 g`
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