Saved Bookmarks
| 1. |
Problems based on Faraday's laws of electrolysis. |
|
Answer» Solution :Determine the quantity of electricity (Q in coulomb) from the PRODUCT of electriccurrent (I in ampere) and time (t in second). (2) Electrochemical EQUIVALENT of a SUBSTANCE can be calculated from the relation, `W=ZxxQ` if amount (W) of the substance deposited at the electrode is known. (3) The amount of substance deposited at the electrode by 1 faraday of electricity = 1 gram - equivalent. If (a) W g of the substance is produced by Q coulomb of electricity, its gram - equivalent `=(W//Qxx96500)g`. (b) If 1 gram - equivalent of the substance is Eg, then Q coulomb electricity will produce `(E//96500xxQ)g` of the substance. |
|