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In a galvanic cell in which the followin...

In a galvanic cell in which the following spontaneous reaction takes place, what process occurs at the cathode?
`3Ce^(4+)(aq) + Cr(s) rightarrow 3Ce^(3+)(aq) + Cr^(3+)(aq)`

A

Reduction of `Cr^(3+)(aq)`

B

`Reductioin of `Ce^(4+)(aq)`

C

Oxidation of Cr(s)

D

Cu(s) will react with `Cr^(3+)(aq)`

Text Solution

Verified by Experts

The correct Answer is:
B
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Consider a voltaic cell in which the reaction below occurs in two half-cells connected by a salt bridge and an external circuit. 2Cr(s) + 3Sn^(2+)(aq) rightarrow 3Sn(s) + 2Cr^(3+)(aq) E^(@) = 0.603V . Which change will cause the voltage to increase?

Calculate the standard cell potential of the galvanic cell in which the following reaction takes place: 2Cr(s)+3Cd^(2+)(aq)to2Cr^(3+)(aq)+3Cd(s) Also calcuate the triangle_(r)G^(ɵ) value of the reaction (given E_(cr^(3+)//Cr)^(ɵ)=-0.74V,E_(Cd^(3+)//Cd)^(ɵ)=-0.40V and F=96500Cmol^(-1)

Consider an electrochemical cell in which the following reaction occurs and predict which changes will decrease the cell voltage : Fe^(2+)(aq)+Ag^(+)(aq)toAg(s)+Fe^(3+)(aq)

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GRB PUBLICATION-ELECTROCHEMISTY-Galvanic Cell and Salt Bridge
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  5. In a galvanic cell in which the following spontaneous reaction takes p...

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  6. For a galvanic cell involving the half-reaction at standard conditions...

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  7. According to the half-reaction table, Sn^(2+) + 2e^(-) rightarrow Sn...

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  8. The reduction potentials for the +2 cations, e.g. A^(2+) + 2e^(-) ri...

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  9. E^(@) = 0.93V for the reactions: Fe(s) + 2M^(+)(aq) rightarrow Fe^(2...

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  11. What is the standard cell potential for the voltaic cell? Cr || Cr^(...

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  12. What is the E^(@) value for the voltaic cell constructed from the half...

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  13. Based on the reactions and data below, which reaction is least spontan...

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  14. Use the standard reduction potentials: Sn^(2+)(aq) + 2e^(-) rightarr...

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  15. What is the standard cell potential for the reaction, 2Cr(s) + 3Sn^(...

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  16. Which is the weakest oxidizing agent in a 1 M aqueous solution?

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  17. Consider the cell potentials E(Mg^(2+)|Mg)^(0)=-2.37V and E(Fe^(3+)|Fe...

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  18. Use the E^(@) values in the table above to the determining which of th...

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