Post-lab: Determination of an Equivalent Mass by Electrolysis (C) Determine whet

Question

Post-lab: Determination of an Equivalent Mass by Electrolysis (C) Determine whether the following statements are true or false (and circle T for true and F for false). If the statement is false, rewrite it to make it true. T or F: An atom changing oxidation number from +2 to -1 is being reduced. T or F: Reduction occurs at the cathode. T or F: An electrolytic cell generates electric current from a spontaneous redox reaction. T or F: Lithium ion is the strongest oxidizing agent in the text's table of standard reduction potentials. T or F: Products at the top of the standard reduction potential table in the text are powerful reducing agents. T or F: In both voltaic and electrolytic cells, cations migrate to the anode.

Explanation / Answer

1) An atom in which oxidation state or number decreases is said to be reduced so the statement is true.

2) True, reduction occurs at the cathode

3) False, a voltaic cell or galvanic cell generates electricitic current from a spontaneous redox reaction.

4) False, Li is the strongest reducing agent

5)False, products at the top of the standard reduction potential in the table are powerful oxidizing agent.

High reduction potential means it has high tendency to get reduced so they will oxidise others.

6) False, in both electrolytic and voltaic cell cation moves to cathode.

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