TIGER

Assessment Questions: 15 results
Electrochemistry : ElectrolysisHalfRxns (20 Variations)
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.)


Electrochemistry |
Oxidation / Reduction |
Electrolytic / Galvanic Cells / Potentials
Electrochemistry : BatteryHalfRxns (20 Variations)
The two half-reactions for the LeClanche dry cell battery are shown below. Identify the oxidizing and reducing agents in this cell.

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


Electrochemistry |
Oxidation / Reduction |
Electrolytic / Galvanic Cells / Potentials
Electrochemistry : ECellObservations (20 Variations)

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?


Electrochemistry |
Oxidation / Reduction |
Electrolytic / Galvanic Cells / Potentials
Electrochemistry : ElectrolysisCalcs (20 Variations)
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 Arrow Au(s)


Electrochemistry |
Oxidation / Reduction |
Electrolytic / Galvanic Cells / Potentials
Electrochemistry : FuelCellsAndBatteries (20 Variations)
Determine whether the following descriptions are characteristic of fuel cells, primary batteries, secondary batteries or both batteries and fuel cells.
Electrochemistry |
Oxidation / Reduction |
Electrolytic / Galvanic Cells / Potentials
Electrochemistry : BalanceRedoxRxn (20 Variations)
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.


Electrochemistry |
Oxidation / Reduction |
Electrolytic / Galvanic Cells / Potentials
Electrochemistry : BatteryDesign (8 Variations)
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.
Electrochemistry |
Oxidation / Reduction |
Electrolytic / Galvanic Cells / Potentials
Electrochemistry : CalcDeltaGfromE (20 Variations)
The following electrochemical data may be helpful in answering the question below.

Calculate the dGo for the oxidation of 2 mole of silver in the following balanced reaction.

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


Electrochemistry |
Oxidation / Reduction
Electrochemistry : CalcStandRedPotential (20 Variations)
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) Arrow 3FeSO3(s)


Electrochemistry |
Oxidation / Reduction
Electrochemistry : GeneralCorrosion (10 Variations)
Which of the following statements not is true?
Electrochemistry |
Oxidation / Reduction
Electrochemistry : GeneralElectrochem (20 Variations)
Which of the following statements is not correct?
Electrochemistry |
Oxidation / Reduction
Electrochemistry : SacrificialAnode (10 Variations)
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).


Electrochemistry |
Oxidation / Reduction |
Metals
Electrochemistry : CalcInterpretEo (20 Variations)
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)

Electrochemistry |
Oxidation / Reduction
Electrochemistry : IDHalfRxns (20 Variations)
What are the half-reactions for the reaction of Cs and Cl2 in the formation of CsCl2?

Cs + Cl2 Arrow CsCl2


Electrochemistry |
Oxidation / Reduction
Electrochemistry : IDRedOxAgents (20 Variations)
In the following balanced reaction, identify the oxidizing and reducing agents.

Fe + Fe2(SO3)3 Arrow 3FeSO3


Electrochemistry |
Oxidation / Reduction