Welcome to the Quiz!
This quiz contains 12 questions from a mix of 1 subtopics.
What is the term for a single electrode in an electrolyte solution where either oxidation or reduction occurs?
electrochemical cell
galvanic cell
redox cell
half-cell
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What is the correct unit for E⦵?
J
mol dm-3
A
V
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A salt bridge allows the flow of betwen the two half-cells to maintain the balance of electrical charge.
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Standard conditions are a temperature of K and a pressure of kPa.
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What is the cell potential (E⦵cell) of a zinc-copper cell, given the standard reduction potentials below?
Zn2+(aq) + 2e- ⇌ Zn(s) E⦵ = -0.76 V
Cu2+(aq) + 2e- ⇌ Cu(s) E⦵ = +0.34 V
-1.10 V
+0.42 V
-0.42 V
+1.10 V
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In an electrochemical cell, chemical energy is converted into energy.
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What is the standard electrode potential of a standard hydrogen electrode?
V
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To measure the standard cell potential for a Mg/Mg2+ half cell, the concentration of Mg2+(aq) must be mol dm-3.
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Select the correct statement about the concentrations of Fe2+(aq) and Fe3+(aq) ions when measuring the standard cell potential for a Fe2+/Fe3+ half-cell.
[Fe2+] should be the same as [Fe3+]
[Fe2+] should be different to [Fe3+]
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The more positive the E⦵ value of a redox system, the greater tendency it has to electrons and be .
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What type of line represents a salt bridge in the shorthand notation of a cell?
a solid double line
a solid single line
a dashed line
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What type of line represents a phase boundary in the shorthand notation of a cell?
a solid single line
a solid double line
a dashed line
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