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Determine the equivalent masses of the f...

Determine the equivalent masses of the following underline compounds by both oxidation number and electrons methods:
`underline (HNO_(3))toNO_(2)+H_(2)O`

Text Solution

Verified by Experts

Oxidation number method : `Hoverset(+5)NO_(3)to overset(+4)NO_(2)+H_(2)O`
The change in oxidation number per molecular of `HNO_(3)` =5-4 =1 unit.
`therefore`Equivalent mass of `HNO_(3)`
`("Molecular mass of " HNO_(3))/(1)=(63)/(1)=63`
Electronic method: `NO_(3)+2H^(+)+e to NO_(2)+H_(2)O`
The number of electronic involved in the reduction of` NO`_(3)` is 1.
`therefore`Equivalent mass of `HNO_(3)`
` ("Molecular mass of "HNO_(3))/(1)=(63)/(1)=63`
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