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| 1. |
In a galvanic cell, the following reaction: Zn(s)+2Ag^(2+)(aq)toZn^(2+)(aq)+2Ag(s),E_(cell)^(@)=1.50V (a) Is the direction of flow of electrons from zinc to silver or silver to zinc? (b) How will the concentration of Zn^(2+) ions and Ag^(+) ions be affected when the cell functions? |
| Answer» Solution :(a) Zn LOSES electrons while `Ag^(+)` ions in `Ag//Ag^(+)` electrons gais electrons. Hence, FLOW of electrons is from Z to Ag. ltBrgt (bgt Zn changes into `Zn^(2+)` ions. Hence, CONCENTRATION of `Zn^(2+)` ions increases. `Ag^(+)` ions change into Ag. Hence, concentration of `Ag^(+)` ions keeps on decreasing. | |