Residual Current Calculator

✖Condenser Current is defined as the current due to the formation of Helmholtz double layer at the mercury surface.ⓘ Condenser Current [i_c]			+10% -10%
✖Faradic Current is defined as the current formed due to the traces of impurities.ⓘ Faradic Current [i_f]			+10% -10%

✖Residual Current is defined as the current that flows in the absence of the depolarizer (i.e. due to the supporting electrolyte).ⓘ Residual Current [i_r]

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Formula

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Residual Current

Formula

`"i"_{"r"} = "i"_{"c"}+"i"_{"f"}`

Example

`"10A"="7A"+"3A"`

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Residual Current Solution

STEP 0: Pre-Calculation Summary

Formula Used

Residual Current = Condenser Current+Faradic Current
i_r = i_c+i_f
This formula uses 3 Variables

Variables Used

Residual Current - (Measured in Ampere) - Residual Current is defined as the current that flows in the absence of the depolarizer (i.e. due to the supporting electrolyte).
Condenser Current - (Measured in Ampere) - Condenser Current is defined as the current due to the formation of Helmholtz double layer at the mercury surface.
Faradic Current - (Measured in Ampere) - Faradic Current is defined as the current formed due to the traces of impurities.

STEP 1: Convert Input(s) to Base Unit

Condenser Current: 7 Ampere --> 7 Ampere No Conversion Required
Faradic Current: 3 Ampere --> 3 Ampere No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

i_r = i_c+i_f --> 7+3

Evaluating ... ...

i_r = 10

STEP 3: Convert Result to Output's Unit

10 Ampere --> No Conversion Required

FINAL ANSWER

10 Ampere <-- Residual Current

(Calculation completed in 00.020 seconds)

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Created by Ritacheta Sen

University of Calcutta (C.U), Kolkata

Ritacheta Sen has created this Calculator and 25+ more calculators!

Verified by Torsha_Paul

University of Calcutta (CU), Kolkata

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< 9 Polarography Calculators

Mass Flow Rate given Diffusion Current

Go Mass Flow Rate for Ilkovic Equation = (Diffusion Current for Ilkovic Equation/(607*(No. of Electrons for Ilkovic Equation)*(Diffusion Coefficient for Ilkovic Equation)^(1/2)*(Time for Dropping Mercury)^(1/6)*(Concentration for Ilkovic Equation)))^(3/2)

Depolariser Concentration given Diffusion Current

Go Concentration for Ilkovic Equation = Diffusion Current for Ilkovic Equation/(607*(No. of Electrons for Ilkovic Equation)*(Diffusion Coefficient for Ilkovic Equation)^(1/2)*(Mass Flow Rate for Ilkovic Equation)^(2/3)*(Time for Dropping Mercury)^(1/6))

No of Electrons given Diffusion Current

Go No. of Electrons for Ilkovic Equation = Diffusion Current for Ilkovic Equation/(607*(Diffusion Coefficient for Ilkovic Equation)^(1/2)*(Mass Flow Rate for Ilkovic Equation)^(2/3)*(Time for Dropping Mercury)^(1/6)*(Concentration for Ilkovic Equation))

Diffusion Current

Go Diffusion Current for Ilkovic Equation = 607*(No. of Electrons for Ilkovic Equation)*(Diffusion Coefficient for Ilkovic Equation)^(1/2)*(Mass Flow Rate for Ilkovic Equation)^(2/3)*(Time for Dropping Mercury)^(1/6)*(Concentration for Ilkovic Equation)

Diffusion Coefficient given Diffusion Current

Go Diffusion Coefficient for Ilkovic Equation = (Diffusion Current for Ilkovic Equation/(607*(No. of Electrons for Ilkovic Equation)*(Mass Flow Rate for Ilkovic Equation)^(2/3)*(Time for Dropping Mercury)^(1/6)*(Concentration for Ilkovic Equation)))^2

Drop Lifetime given Diffusion Current

Go Time for Dropping Mercury = (Diffusion Current for Ilkovic Equation/(607*(No. of Electrons for Ilkovic Equation)*(Mass Flow Rate for Ilkovic Equation)^(2/3)*(Diffusion Coefficient for Ilkovic Equation)^(1/2)*(Concentration for Ilkovic Equation)))^6

Condenser Current given Residual Current

Go Condenser Current = Residual Current-Faradic Current

Faradic Current given Residual Current

Go Faradic Current = Residual Current-Condenser Current

Residual Current

Go Residual Current = Condenser Current+Faradic Current

Residual Current Formula

Residual Current = Condenser Current+Faradic Current
i_r = i_c+i_f

What is half wave potential and limiting current in polarography ?

Half wave potential is the potential at which the concentration of oxidised and reduced forms at electrode surface is equal. i.e., 50% of oxidised and 50% of reduced forms are present.
Beyond a certain potential, the current reaches a steady state value called as the limiting current. At this point, the rate of the diffusion of ions is equal to the rate of reduction of ions, and the state of electrode is said to be concentration polarised.

How to Calculate Residual Current?

Residual Current calculator uses Residual Current = Condenser Current+Faradic Current to calculate the Residual Current, The Residual Current formula is defined as the current that flows in the absence of the depolarizer (i.e. due to the supporting electrolyte) while interpreting polarograms. Residual Current is denoted by i_r symbol.

How to calculate Residual Current using this online calculator? To use this online calculator for Residual Current, enter Condenser Current (i_c) & Faradic Current (i_f) and hit the calculate button. Here is how the Residual Current calculation can be explained with given input values -> 10 = 7+3.

FAQ

What is Residual Current?

The Residual Current formula is defined as the current that flows in the absence of the depolarizer (i.e. due to the supporting electrolyte) while interpreting polarograms and is represented as i_r = i_c+i_f or Residual Current = Condenser Current+Faradic Current. Condenser Current is defined as the current due to the formation of Helmholtz double layer at the mercury surface & Faradic Current is defined as the current formed due to the traces of impurities.

How to calculate Residual Current?

The Residual Current formula is defined as the current that flows in the absence of the depolarizer (i.e. due to the supporting electrolyte) while interpreting polarograms is calculated using Residual Current = Condenser Current+Faradic Current. To calculate Residual Current, you need Condenser Current (i_c) & Faradic Current (i_f). With our tool, you need to enter the respective value for Condenser Current & Faradic Current and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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