Reference EMF Calculator

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✖Indicator EMF is the maximum Potential difference between two Electrodes of a cell. It is defined as the net voltage between the oxidation and reduction half-reactions.ⓘ Indicator EMF [Ei]			+10% -10%
✖Junction EMF the maximum Potential difference between two Electrodes . It is defined as the net voltage between the oxidation and reduction half-reactions.ⓘ Junction EMF [Ej]			+10% -10%
✖Cell Potential in Potentiometry is the amount of work energy needed to move a unit of electric charge from a reference point to a specific point in an electric field.ⓘ Cell Potential in Potentiometry [E_cell]			+10% -10%

✖Reference EMF is the maximum Potential difference between two Electrodes of a cell.ⓘ Reference EMF [Er]

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Formula

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Reference EMF

Formula

Er = Ei + Ej - E cell

Example

-5 = 5 + 10 - 20

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Reference EMF Solution

STEP 0: Pre-Calculation Summary

Formula Used

Reference EMF = Indicator EMF+Junction EMF-Cell Potential in Potentiometry
Er = Ei+Ej-E_cell
This formula uses 4 Variables

Variables Used

Reference EMF - Reference EMF is the maximum Potential difference between two Electrodes of a cell.
Indicator EMF - Indicator EMF is the maximum Potential difference between two Electrodes of a cell. It is defined as the net voltage between the oxidation and reduction half-reactions.
Junction EMF - Junction EMF the maximum Potential difference between two Electrodes . It is defined as the net voltage between the oxidation and reduction half-reactions.
Cell Potential in Potentiometry - Cell Potential in Potentiometry is the amount of work energy needed to move a unit of electric charge from a reference point to a specific point in an electric field.

STEP 1: Convert Input(s) to Base Unit

Indicator EMF: 5 --> No Conversion Required
Junction EMF: 10 --> No Conversion Required
Cell Potential in Potentiometry: 20 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Er = Ei+Ej-E_cell --> 5+10-20

Evaluating ... ...

Er = -5

STEP 3: Convert Result to Output's Unit

-5 --> No Conversion Required

FINAL ANSWER

-5 <-- Reference EMF

(Calculation completed in 00.004 seconds)

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Created by Torsha_Paul

University of Calcutta (CU), Kolkata

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National University of Judicial Science (NUJS), Kolkata

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< Potentiometry and Voltametry Calculators

Area of Electrode

Go Area of Electrode = (Cathodic Current/(2.69*(10^8)*Number of electrons given CI*Concentration given CI*(Diffusion Constant^0.5)*(Sweep Rate^0.5)))^(2/3)

Applied Potential

Go Applied Potential in Potentiometry = Cell Potential in Potentiometry+(Current in Potentiometry*Resistance in Potentiometry)

Anodic Potential

Go Anodic Potential = Cathodic Potential+(57/Moles of Electron)

Anodic Potential given half potential

Go Anodic Potential = (Half Potential/0.5)-Cathodic Potential

Reference EMF Formula

Reference EMF = Indicator EMF+Junction EMF-Cell Potential in Potentiometry
Er = Ei+Ej-E_cell

What is the basic principle of potentiometry?

The potential difference between the two electrodes used forms the basis of the potentiometry principle. The addition of a titrant leads to a change in the ionic concentration, causing changes in the potential difference. The indicator electrode measures this potential difference.

How to Calculate Reference EMF?

Reference EMF calculator uses Reference EMF = Indicator EMF+Junction EMF-Cell Potential in Potentiometry to calculate the Reference EMF, The Reference EMF formula is defined as one of the important concepts that help us understand the process of electromagnetism. The electromotive force is abbreviated as the EMF and it is closely associated with the more common concept of voltage. The electromotive force is the total energy provided by a battery or a cell per coulomb q of charge crossing through it. Reference EMF is denoted by Er symbol.

How to calculate Reference EMF using this online calculator? To use this online calculator for Reference EMF, enter Indicator EMF (Ei), Junction EMF (Ej) & Cell Potential in Potentiometry (E_cell) and hit the calculate button. Here is how the Reference EMF calculation can be explained with given input values -> -5 = 5+10-20.

FAQ

What is Reference EMF?

The Reference EMF formula is defined as one of the important concepts that help us understand the process of electromagnetism. The electromotive force is abbreviated as the EMF and it is closely associated with the more common concept of voltage. The electromotive force is the total energy provided by a battery or a cell per coulomb q of charge crossing through it and is represented as Er = Ei+Ej-E_cell or Reference EMF = Indicator EMF+Junction EMF-Cell Potential in Potentiometry. Indicator EMF is the maximum Potential difference between two Electrodes of a cell. It is defined as the net voltage between the oxidation and reduction half-reactions, Junction EMF the maximum Potential difference between two Electrodes . It is defined as the net voltage between the oxidation and reduction half-reactions & Cell Potential in Potentiometry is the amount of work energy needed to move a unit of electric charge from a reference point to a specific point in an electric field.

How to calculate Reference EMF?

The Reference EMF formula is defined as one of the important concepts that help us understand the process of electromagnetism. The electromotive force is abbreviated as the EMF and it is closely associated with the more common concept of voltage. The electromotive force is the total energy provided by a battery or a cell per coulomb q of charge crossing through it is calculated using Reference EMF = Indicator EMF+Junction EMF-Cell Potential in Potentiometry. To calculate Reference EMF, you need Indicator EMF (Ei), Junction EMF (Ej) & Cell Potential in Potentiometry (E_cell). With our tool, you need to enter the respective value for Indicator EMF, Junction EMF & Cell Potential in Potentiometry 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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