AP Chemistry: Electrochemistry flashcards

Question 1

Which electrode in an electrochemical cell is the one where oxidation occurs?

Accepted Answer

The anode

Question 2

Which electrode in an electrochemical cell is the one where reduction occurs?

Accepted Answer

The cathode

Question 3

What is an electrode called when it carries electrons to and from the reactants in a half-cell but is not itself oxidized or reduced?

Accepted Answer

An inert electrode

Question 4

What is a single galvanic cell, or a series of them, made for use as a source of electrical power, called?

Accepted Answer

A battery

Question 5

What is the difference in potential between the cathode and anode half-cells called?

Accepted Answer

Cell potential (E cell)

Question 6

What is a galvanic cell called whose half-cells are identical except for the concentration of one redox reactant or product?

Accepted Answer

A concentration cell

Question 7

What is the process called that uses electrical energy to make a nonspontaneous process occur?

Accepted Answer

Electrolysis

Question 8

What is an electrochemical cell called in which an external source of electrical power drives an otherwise nonspontaneous process?

Accepted Answer

An electrolytic cell

Question 9

What constant gives the charge on one mole of electrons?

Accepted Answer

Faraday's constant (F)

Question 10

What is an electrochemical cell called in which a spontaneous redox reaction takes place?

Accepted Answer

A galvanic (voltaic) cell

Question 11

What is it called to protect iron or similar metals from corrosion by coating them with a thin layer of more easily oxidized zinc?

Accepted Answer

Galvanization

Question 12

What is a nonrechargeable battery suitable only for single use called?

Accepted Answer

A primary cell

Question 13

What is a battery designed to allow recharging called?

Accepted Answer

A secondary cell

Question 14

What is a tube filled with an inert electrolyte solution, used in a cell, called?

Accepted Answer

A salt bridge

Question 15

Which half-cell, based on hydrogen ion production, is assigned a potential of exactly 0 V under standard state conditions?

Accepted Answer

The standard hydrogen electrode (SHE)

Question 16

What is an electrode called that is made of an easily oxidized metal and used to prevent corrosion of metal objects through cathodic protection?

Accepted Answer

A sacrificial anode

Question 17

What is it called to prevent corrosion of a metal object by connecting it to a sacrificial anode made of a more readily oxidized metal?

Accepted Answer

Cathodic protection

Question 18

What equation relates the potential of a redox system to its composition?

Accepted Answer

The Nernst equation

Question 19

What is a symbolic representation of the components and reactions in an electrochemical cell called?

Accepted Answer

Cell notation (schematic)

Question 20

What rechargeable battery, commonly used in automobiles, is based on Pb half-reactions in acidic solution?

Accepted Answer

A lead acid battery

Question 21

What widely used rechargeable battery in portable electronic devices is based on lithium ion transfer between the anode and cathode?

Accepted Answer

A lithium ion battery

Question 22

What rechargeable battery is based on Ni/Cd half-cells?

Accepted Answer

A nickel-cadmium battery

Question 23

What primary battery, similar to a dry cell, uses an alkaline electrolyte (often potassium hydroxide)?

Accepted Answer

An alkaline battery

Question 24

What is the potential of a cell called in which the half-cell of interest acts as the cathode when connected to the standard hydrogen electrode?

Accepted Answer

Electrode potential (E X)

Question 25

What is the cell potential called when all reactants and products are in their standard states?

Accepted Answer

Standard cell potential (E cell°)

Question 26

What is an electrode potential called when it is measured under standard conditions?

Accepted Answer

Standard electrode potential (E X°)

AP Chemistry: Electrochemistry flashcards

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