AP CHEM Unit 3 In Class Review

Front

What is the standard cell potential of a galvanic cell?

Back

The standard cell potential (E°) is the measure of the voltage produced by a galvanic cell under standard conditions (1 M concentration, 1 atm pressure, and 25°C). It indicates the tendency of the cell to produce electrical energy.

Front

What is the oxidation state of manganese in MnO4-?

Back

In MnO4-, the oxidation state of manganese (Mn) is +7.

Front

What is the process of oxidation in a redox reaction?

Back

Oxidation is the process in which an atom, ion, or molecule loses electrons, resulting in an increase in oxidation state.

Front

What is the process of reduction in a redox reaction?

Back

Reduction is the process in which an atom, ion, or molecule gains electrons, resulting in a decrease in oxidation state.

Front

In the reaction 2MnO4- + 16H+ + 10I- → 2Mn2+ + 8H2O + 5I2, what is being reduced?

Back

Manganese (Mn) is being reduced from an oxidation state of +7 to +2.

Front

What is the relationship between oxidation and reduction in a redox reaction?

Back

In a redox reaction, oxidation and reduction occur simultaneously; one species is oxidized (loses electrons) while another is reduced (gains electrons).

Front

What does it mean for a half-cell to undergo oxidation?

Back

When a half-cell undergoes oxidation, it means that the species in that half-cell is losing electrons and increasing its oxidation state.

Front

What does it mean for a half-cell to undergo reduction?

Back

When a half-cell undergoes reduction, it means that the species in that half-cell is gaining electrons and decreasing its oxidation state.

Front

In a redox titration, what does the stoichiometry of the reactants indicate?

Back

The stoichiometry of the reactants in a redox titration indicates the molar relationship between the oxidizing agent and the reducing agent, which is essential for determining the equivalence point.

Front

What happens to the voltage of an electrochemical cell if an inert electrode is used?

Back

Replacing a reactive electrode with an inert electrode does not change the cell potential (E°) as long as the overall reaction remains the same; however, it may affect the reaction kinetics.