The electrochemical cell potential is illustrated by the image below.

To compute for electrochemical cell potential, two essential parameters are needed and these parameters are **Positive Cell Potential (V _{2}°)** and

**Negative Cell Potential (V**

_{1}°).The formula for calculating electrochemical cell potential:

ΔV° = V_{2}° – V_{1}°

Where:

ΔV° = Electrochemical Cell Potential

V_{2}° = Positive Cell Potential

V_{1}° = Negative Cell Potential

Given an example;

Find the electrochemical cell potential when the positive cell potential is 14 and the negative cell potential is 7.

This implies that;

V_{2}° = Positive Cell Potential = 14

V_{1}° = Negative Cell Potential = 7

ΔV° = V_{2}° – V_{1}°

ΔV° = 14 – 7

ΔV° = 7

Therefore, the **elecreochemical cell potential **is **7 V.**

**Calculating the Positive Cell Potential when the Electrochemical Cell Potential and the Negative Cell Potential is Given.**

V_{2}° = ΔV° + V_{1}°

Where:

V_{2}° = Positive Cell Potential

ΔV° = Electrochemical Cell Potential

V_{1}° = Negative Cell Potential

Let’s solve an example;

Find the positive cell potential when the electrochemical cell potential is 20 and the negative cell potential is 14.

This implies that;

ΔV° = Electrochemical Cell Potential = 20

V_{1}° = Negative Cell Potential = 14

V_{2}° = ΔV° + V_{1}°

V_{2}° = 20 + 14

V_{2}° = 34

Therefore, the **positive cell potential **is **34 V.**

**Calculating the Negative Cell Potential when the Electrochemical Cell Potential and the Positive Cell Potential is Given.**

V_{1}° = V_{2}° – ΔV°

Where:

V_{1}° = Negative Cell Potential

ΔV° = Electrochemical Cell Potential

V_{2}° = Positive Cell Potential

Let’s solve an example;

Find the negative cell potential when the electrochemical cell potential is 18 and the positive cell potential is 24.

This implies that;

ΔV° = Electrochemical Cell Potential = 18

V_{2}° = Positive Cell Potential = 24

V_{1}° = V_{2}° – ΔV°

V_{1}° = 24 – 18

V_{1}° = 6

Therefore, the **negative cell potential **is **6 V.**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the electrochemical cell potential.

To get the answer and workings of the electrochemical cell potential using the **Nickzom Calculator – The Calculator Encyclopedia. **First, you need to obtain the app.

You can get this app via any of these means:

**Web** – https://www.nickzom.org/calculator-plus

To get access to the **professional **version via web, you need to **register** and **subscribe **to have utter access to all functionalities.

You can also try the **demo **version via https://www.nickzom.org/calculator

**Android (Paid)** – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)** – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)** – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to the **Calculator Map, **then click on **Materials and Metallurgical **under **Engineering****.**

Now, Click on **Corrosion**** **under **Materials and Metallurgical**

Now, Click on **Electrochemical Cell Potential** under **Corrosion**

The screenshot below displays the page or activity to enter your values, to get the answer for the electrochemical cell potential according to the respective parameter which is the **Positive Cell Potential (V _{2}°)** and

**Negative Cell Potential (V**

_{1}°).Now, enter the values appropriately and accordingly for the parameters as required by the **Positive Cell Potential (V _{2}°) **is

**14**and

**Negative Cell Potential (V**is

_{1}°)**7**.

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia solves for the electrochemical cell potential and presents the formula, workings and steps too.