chem help (1 Viewer)

[mecramarathon]

i can't understand this question and answer provided??? (2007 Ind)

Consider the silver oxide button cell when 90% of the silver oxide has reacted. Predict the effect on the cell voltage, giving reason for your answer.

The cell voltage will remain close to 1.59V. This is because all reactants and products are solid with fixed concentration. THe concentrate of hydroxide ions in solution is unchanged.

 

[MetroMattums]

This suggests that the same amount of energy is required for each individual electron transfer reaction within the cell - it's a similar question to asking what's the EMF of 2Ag+ + 2e- => 2Ag as opposed to Ag+ + e- => Ag