EASY
AS and A Level
IMPORTANT
Earn 100

An aqueous solution of silver nitrate is electrolysed. Explain why silver rather than hydrogen is produced at the cathode.

Important Questions on Electrochemistry

EASY
AS and A Level
IMPORTANT
An aqueous solution of silver nitrate is electrolysed. Write an equation for the reaction occurring at the cathode.
EASY
AS and A Level
IMPORTANT
An aqueous solution of silver nitrate is electrolysed. Write an equation for the reaction occurring at the anode. 
EASY
AS and A Level
IMPORTANT
An aqueous solution of silver nitrate is electrolysed. Deduce whether the anode reaction is an oxidation or reduction reaction. Explain your answer.
EASY
AS and A Level
IMPORTANT
An aqueous solution of silver nitrate is electrolysed. Explain why silver nitrate becomes acidic during this electrolysis?
MEDIUM
AS and A Level
IMPORTANT
Calculate the mass of silver deposited at the cathode when the electrolysis is carried out for exactly 35 min using a current of 0.18 A. (ArAg=108; F=96500 C).
EASY
AS and A Level
IMPORTANT
The reaction taking place in an electrochemical cell under standard conditions is Fe2+aq+Ag+aq            Fe3+aq+Ags. Write two half-equations for this reaction. For each, state whether oxidation or reduction is occurring.
EASY
AS and A Level
IMPORTANT
The standard electrode potential for the half-cell containing Fe2+aq and Fe3+aq is +0.77 V. Use the relationship E=E°+0.059zlogoxidised formreduced form to calculate the electrode potential at 298 K if the concentration of Fe2+aq is 0.02 mol dm-3 and the concentration of Fe3+aq is 0.1 mol dm-3.
EASY
AS and A Level
IMPORTANT
The standard electrode potential for the half-cell containing Fe2+aq and Fe3+aq is +0.77 V. Using the relationship E=E°+0.059zlogoxidised formreduced form explain why the standard electrode potential for the half-cell containing Fe2+aq and Fe3+aq is always +0.77 V if there are equimolar concentrations of Fe2+aq and Fe3+aq.