The image above represents the freezing point depression.

To compute for the freezing point depression, three essential parameters are needed and these parameters are Van’t Hoff’s Factor (i), cryoscopic constant (K_{f}) and molality.

The formula for calculating freezing point depression:

δT_{f} = iK_{f} x Molality

Where;

δT_{f} = Freezing point depression

i = Van’t Hoff’s Factor

K_{f} = cryoscopic constant

Molality

Let’s solve an example;

Find the freezing point depression when the van’t hoff’s factor is 12, cryoscopic constant is 21 with a molality of 16.

δT_{f} = iK_{f} x Molality

δT_{f} = (12 x 21) x 16

δT_{f} = 252 x 16

δT_{f} = 4032

Therefore, the **freezing point depression** is **4032 °C m ^{-1}.**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the freezing point depression.

To get the answer and workings of the freezing point depression 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 **for** NGN 1,500 **per** annum** 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 **Basic Chemistry **under **Chemistry**

Now, Click on **Freezing Point Depression** under **Basic Chemistry**

The screenshot below displays the page or activity to enter your values, to get the answer for the freezing point depression according to the respective parameters which are the **Van’t Hoff’s Factor (i), Cryoscopic Constant** **(K _{f})** and

**Molality.**

Now, enter the values appropriately and accordingly for the parameters as required by the **example** above where the **Van’t Hoff’s Factor (i)** is **12**,** Cryoscopic Constant** **(K _{f})** is

**21**and

**Molality**is

**16.**

Finally, Click on Calculate

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