College Chemistry and AP Chem

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GeneralElectrochem01

Multiple choice question
Which of the following statements is not correct?
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CalcInterpretEo01

Matching
The following electrochemical data may be helpful in answering the question below.

Consider a cell composed of the following half-reactions. Determine the magnitude of E° for the cell and decide whether the reaction will be product-favored or reactant-favored as written.

Cr(s) Cr3+(aq) + 3e-
Ce4+(aq) + e- Ce3+(aq)

IDRedOxAgents01

Multiple choice question
In the following balanced reaction, identify the oxidizing and reducing agents.

Fe + Fe2(SO3)3 3FeSO3

SacrificialAnode01

Multiple choice question
The following electrochemical data may be helpful in answering the question below.

One method for protecting metals against corrosion is to connect the metal directly to a "sacrificial anode." This is the method used to protect pipelines and ships hulls. Which of the following metals would you consider the best candidate for a sacrificial anode for a ship's hull? The hull is steel (which is mostly iron).

CalcStandRedPotential01

Multiple choice question
The following electrochemical data may be helpful in answering the question below.

Calculate Eo for the following balanced reaction.

Fe(s) + Fe2(SO3)3(s) 3FeSO3(s)

ElectrolysisHalfRxns01

Multiple choice question
The following electrochemical data may be helpful in answering the question below.

What will be the products of the electrolysis of an aqueous solution of tin(II) sulfate (SnSO4)? (The electrodes themselves are platinum.)

CalcDeltaGfromE01

Multiple choice question
The following electrochemical data may be helpful in answering the question below.

Calculate the Go for the oxidation of 2 moles of silver in the following balanced reaction.

2Ag(s) + CaI2(aq) Ca(s) + 2AgI(s)

GeneralCorrosion01

Multiple choice question
Which of the following statements not is true?

IDHalfRxns01

Multiple choice question
What are the half-reactions for the reaction of Cs and Cl2 in the formation of CsCl2?

Cs + Cl2 CsCl2

BalanceRedoxRxn01

Multiple choice question
The following electrochemical data may be helpful in answering the question below.

Magnesium reacts with nitric acid to form magnesium nitrate and nitrogen monoxide in an acidic aqueous solution. Write the balanced equation for this reaction.

ElectrolysisCalcs01

Multiple choice question
Calculate the mass of gold that could be plated from a solution with a current of 0.40 A for 22 min.

Au3+(aq) + 3 electrons Au(s)

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FuelCellsAndBatteries01

Matching
Determine whether the following descriptions are characteristic of fuel cells, primary batteries, secondary batteries or both batteries and fuel cells.

BatteryHalfRxns01

Multiple choice question
The two half-reactions for the LeClanché dry cell battery are shown below. Identify the oxidizing and reducing agents in this cell.

Zn(s) Zn2+(aq) + 2e-
2NH4+(aq) + 2e- 2NH3(g) + H2(g)

EcellObservations01

Multiple choice question
Consider the electrochemical cell diagram shown below. As you observe the reaction in the cell, you notice that the tin electrode seems to be disappearing while there are deposits forming on the silver electrode. Which of the following is a correct statement?

BatteryDesign01

Multiple choice question
Students are attempting to construct a battery in the laboratory that will light up a light bulb. Compare the following lists prepared by students and determine which student will not be able to successfully build a "battery" that will light up the bulb.

JCE Electrochemistry

268 questions

GC – Electrochemistry (ELECTRO) {GenChem/Electrochem/}

 

ResonanceStructures01

Multiple choice question
Select the molecule(s) below for which resonance structures can be drawn.

LewisStructures01

Multiple choice question
Which of the following Lewis structures are CORRECT?
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MatchBondStrength01

Matching
Match each of the following molecules to the best energy value for each bond. Do not use a table of bond energies, but predict these values using your knowledge of bond length and bond strength.
Possible energies are: 300 kJ/mol, 330 kJ/mol, 415 kJ/mol and 950 kJ/mol.

OrganicBondLength01

Multiple choice question
1-amino-2-naphthol-6-sulfonic acid is used as a photographic developer. The structure for this compound is shown below, although lone electron pairs are not shown. Which of the following bonds in the structure is the shortest?
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