Question
Asked Nov 5, 2019
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Write the half-reactions as they occur at each electrode and the net cell reaction for this electrochemical cell containing
indium and cadmium
In(s) In* (aq)|Ca2 (ag)Ca(s)
3+
anode
cathode
net cell reaction:
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Write the half-reactions as they occur at each electrode and the net cell reaction for this electrochemical cell containing indium and cadmium In(s) In* (aq)|Ca2 (ag)Ca(s) 3+ anode cathode net cell reaction:

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Expert Answer

Step 1

The given cell reaction by shorthand notation is labelled as equation (1).

The half-cell reaction at anode is given as equation (2).

The half-cell reaction at cathode is given as equation (3).

... (1
In(s) In* (aq)Ca2 (aq)ca(s)
.... (2)
oxidation half equation
In (s)In3(aq)+3e
(3)
reduction half equation
Cd2 (aq)2e>Cd (s)
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... (1 In(s) In* (aq)Ca2 (aq)ca(s) .... (2) oxidation half equation In (s)In3(aq)+3e (3) reduction half equation Cd2 (aq)2e>Cd (s)

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Step 2

Multiply equation (2) by  2 as shown in equation (4).

Multi...

2In(s)2In3 (aq) + 6e"|
oxidation half equation
(4)
3Cd2 (aq) 6e->3Cd(s
reduction half equation ...... (5)
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2In(s)2In3 (aq) + 6e"| oxidation half equation (4) 3Cd2 (aq) 6e->3Cd(s reduction half equation ...... (5)

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