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Mn((aq.))^(2+) can be determined by titr...

`Mn_((aq.))^(2+)` can be determined by titration with `MnO_(4(aq.))^(-)`
`3Mn^(2+)+2MnO_(4)^(-)rarr6MnO_(2)+2H_(2)O`
A `25.00 mL` sample of `Mn_((aq.))^(2+)` requires `34.77 mL` of `0.05876 M KMnO_(4(aq.))` for its titration. What is the molarity of the `Mn_((aq.))^(2+)`?

Text Solution

Verified by Experts

`Mn^(2+)rarrMn^(4+)+2e`
`Mn^(7+)+3erarrMn^(4+)`
Also Meq. Of `MnO_(4)^(-)=` Meq of `Mn^(4+)M`
`0.05876xx3xx34.77=Mxx2xx25`
`M_(Mn)^(2+)=0.1226M`
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P BAHADUR-REDOX REACTIONS-Exercise(8) Statement:Explanation type problems
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  2. Statement Oxidation number of Cu in CuH is -1 Explanation Cu is plac...

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  3. Statement Oxidation state of H is +1 in CuH(2) and -1 in CaH(2) Expl...

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  4. Statement Oxygen atom in both O(2) and O(3) has oxidation number zero....

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  5. Statement N atom has two different oxidation states in NH(4)NO(2). E...

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  6. Statement 2H(2)O(2)rarr2H(2)O+O(2) is autoredox change. Explanation ...

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  7. Statement Oxidation number of metals in metal carbonyls is zero. Exp...

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  8. Statement SO(2) can be used as reductant as well as oxidant. Explanat...

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  9. Statement KMnO(4) is strong oxidant whereas Mn^(2+) is weaker reductan...

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  10. Statement VO(2)^(+) and VO^(2+) both are called vanadyl ions. Explana...

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  11. Statement In the reactions , 3As(2)S(3)rarr28HNO(3)+4H(2)Orarr6H(3)AsO...

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  12. Statement In acidic medium equivalent weight of K(2)Cr(2)O(7) is 49. ...

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  13. Statement Iodimetric titrations are redox titrations. Explanation The...

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  14. Statement The redox titarations in which liberated I(2) is used as oxi...

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  15. Statement KMnO(4) acts as oxidant as well as self indicator in its tit...

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  16. Statement The equivalence point refers the condition where equivalents...

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  17. Statement The equivalence weight of KMnO(4) when it is converted to K(...

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  18. Statement The number of equivalent per mole of H(2)S used in its oxida...

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  19. Statement Starch is generally used as absorption indicator in iodimetr...

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  20. Statement The oxidation number of an element in its free or uncombined...

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