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A voltaic cell utilizes the following reaction:
4Fe2+(aq)+O2(g)+4H+(aq)?4Fe3+(aq)+2H2O(l).

1.

What is the emf of this cell when [Fe2+]= 1.9M , [Fe3+]= 1.7

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Bunny Greenfelder
Bunny GreenfelderLv2
9 Sep 2019

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Related questions

A) Titration of an acidic solution of Na2C2O4 with KMnO4(aq). Which species is the reducing agent? Express your answer as an ion.

 

B) A voltaic cell utilizes the following reaction:

 

What is the emf for this cell when [Fe3+]= 3.50 M, Pressure of H2= 0.99 atm, [Fe2+]= 1.1×10−3 M, and the pH in both compartments is 4.15? Express your answer using two significant figures.

Fe(s)-->Fe2+(aq) + 2e- E standard=0.45v (anode)
O2(g)+4H=(aq)+4e-->2H2O(l) E standard=1.23v (cathode)
2Fe3+(aq)+4H2O(l)-->Fe2O3*H2O(s)+6H+(aq)

What is the cell potential for the entire cell at a pH=7, a partialpressure of O2(g) of 0.18 bar, and an [Fe2+]=0.00150M?

A voltaic cell utilizes the following reaction and operates at 298 K:

3 Ce4+(aq) + Cr(s)→3Ce3+(aq) + Cr3+(aq)

(a) What is the emf of this cell under standard conditions?

(b) What is the emf of this cell when [Ce4+] = 3.0 M, [Ce3+] = 0.10 M, and [Cr3+] = 0.010 M?

What is the emf of the cell when [Ce4+] = 0.010 M, [Ce3+] = 2.0 M, and [Cr3+] = 1.5 M?

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