Problem: A 1M solution of Cu ( NO3 )2 is placed in a beaker with a strip of Cu metal. A 1 M solution of SnSO4 is placed in a second beaker with a strip of Sn metal. A salt bridge connects the two beakers, and wires to a voltmeter link the two metal electrodes.Which electrode gains mass and which loses mass as the cell reaction proceeds?

FREE Expert Solution

We’re being asked to label each component of the voltaic cell:


Recall that a voltaic or galvanic cell is an electrochemical cell that is spontaneous and produces electricity



Let's recall some parts of the galvanic cell:

Ÿ Anode is in the negative side (left side of the diagram)

▪ Anode → oxidation
oxidation half-reaction happens in the anode solution
▪ losing electrons → becoming more positive → anode dissolves away

Ÿ Cathode is in the positive side (right side of the diagram)

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Problem Details

A 1M solution of Cu ( NO3 )2 is placed in a beaker with a strip of Cu metal. A 1 M solution of SnSO4 is placed in a second beaker with a strip of Sn metal. A salt bridge connects the two beakers, and wires to a voltmeter link the two metal electrodes.

Which electrode gains mass and which loses mass as the cell reaction proceeds?

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