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If 25.8 ml of 0.101 M K(2)Cr(2)O(7) is r...

If `25.8 ml` of `0.101 M K_(2)Cr_(2)O_(7)` is required to titrate `10.0 ml` of a liquid iron supplement, calculate the concentration of iron in vitamin solution

A

`0.780 M`

B

`0.261 M`

C

`4.35xx10^(-4)M`

D

`1.56 M`

Text Solution

Verified by Experts

The correct Answer is:
D
Equivalent of `K_(2)Cr_(2)O_(7)=` Eq. of `Fe`
` implies 25.8xx0.101xx6=10.0xxMxx1`
` implies M=1.56 mol//L`
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