
Interpretation:
The combination of metal that will result in the greatest voltage must be predicted with explanation. Also, voltage must be calculated for the
Concept Introduction:
Voltage of an

Answer to Problem 5E
Electrochemical cell with iron and calcium will have greatest voltage.
Cell voltage
Explanation of Solution
Higher the position of a metal in the electrochemical series stronger is the reducing power and higher negative is the reduction potential.
Lower the position of a metal in the electrochemical series stronger is the oxidizing power and higher positive is the reduction potential.
Accordingly, combination of Calcium and iron is considered.
For iron and calcium cell
Cell voltage
For copper and tin cell
Cell voltage
For silver and aluminium cell
Cell voltage
For copper and lead cell
Cell voltage
The calculations show that the voltage of the cell is greatest among all the given cells and thus the prediction was correct.
Greatest voltage cell was predicted from the given combination of metals. Prediction which matched with voltage calculation was correct.
Chapter U5 Solutions
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