Saved Bookmarks
| 1. |
How many faradays of charge are required to convert: (a). 1 mole of `MnO_(4)^(-)` to `Mn^(2+)` ion, (b). 1 mole of `Cr_(2)O_(7)^(2-)` to `Cr^(2+)` ion |
|
Answer» (a). `MnO^(-)toMn^(2+), Mn^(7+)+5e^(-)toMn^(2+)` i.e., when 1 mole of `MnO_(4)^(-)` changes to `Mn^(2+)` 5 faradays of charge is required. (b). `Cr_(2)O_(7)^(2-)to2Cr^(3+),2Cr^(6)+.^(+)6e^(-)to2Cr^(3+` i.e., 6 faradays of charge is required. |
|