Home
Class 12
CHEMISTRY
What is the electrode potent ial Fe^(3+)...

What is the electrode potent ial `Fe^(3+)//Fe` electrode in which concentration of `Fe^(3+)` ions is 0.1M Given `E^(@)Fe^(3+)//Fe=+0.771V`

A

`+0.79V`

B

`+0.75V`

C

`1.50V`

D

`+1.0V`

Text Solution

Verified by Experts

The correct Answer is:
B
`Fe^(3+)+3e^(-)rarrFe`
`E=E^(@)-(0.059)/(n)"log"([Fe])/([Fe^(3+)])`
`=+0.771-(0.059)/(n)"l og"(1)/(0.1)=+0.75V`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    DINESH PUBLICATION|Exercise REVISION QUESTIONS FROM COMPETITIVE EXAMS|198 Videos

  • ELECTROCHEMISTRY

    DINESH PUBLICATION|Exercise SELECTED STRAIGHT OBJECTIVE|67 Videos

  • D-AND -F BLOCK ELEMENTS

    DINESH PUBLICATION|Exercise BRAIN STORMING MULTIPLE CHOICE QUESTIONS (MCQS)|13 Videos

  • ETHERS

    DINESH PUBLICATION|Exercise (MCQs)|8 Videos

Similar Questions

Explore conceptually related problems

Calculate the reduction potential of a half cell consisting of a platinum electrode immersed in 2.0M Fe^(2+) and 0.02M Fe^(3+) solution. Given E_(Fe^(3+)//Fe^(2+))^(@) = 0.771 V .

What is the standard reducing potential (E^(@)) for Fe^(3+)to Fe ? (Given that Fe^(2+)+2e^(-)rightarrowFe, E_(Fe^(2+)//Fe^(@)) =-0.47V Fe^(3+) + e^(-)to Fe^(2+) , E_(Fe^(3+)//Fe^(2+))^(@)= +0.77V

What is the value of E^(@) cell in the following reaction? Cr|Cr^(3+) (0.1 M)||Fe^(2+) (0.01 M)|Fe Given, E_(Cr^(3+)//Cr)^(@)=-0.74 V, E_(Fe^(2+)//Fe)^(@)=-0.44 V

The standard electrode potentials, E^(@) of Fe^(3+)//Fe^(2+) and Fe^(2+)//Fe at 300 K are +0.77V and -0.44V , respectively. The E^(@) of Fe^(3+)//Fe at the same temperature is