The average repeat unit molecular weight for co-polymers is represented by the image below.

To compute for average repeat unit molecular weight for co-polymers, one essential parameter is needed and the parameter is **Numbers of co-polymers (n). **By determining the number of co-polymers, four parameters is needed to get your answer so the parameters are **Mole Fraction (f _{1}), Molecular Weight (M_{1}), Mole Fraction (f_{2})** and

**Molecular Weight (M**

_{2}).The formula for calculating the average repeat unit molecular weight for co-polymers:

m’ = Σf_{i}M_{i}

Let’s solve an example;

Find the average repeat unit molecular weight for co-polymers when the mole fraction(s) is 8,2 and the molecular weight(s) is 4,6.

This implies that;

m’ = Σf_{i}M_{i}

Where:

m’ = Average Repeat Unit Molecular Weight for Co-Polymers

f_{i} = Mole Fraction(s)

M_{i} = Molecular Weight(s)

m’ = (8)(4) + (2)(6)

m’ = (32) + (12)

m’ = 44

Therefore, the **average repeat unit molecular weight for co-polymers **is **44.**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the average repeat unit molecular weight for co-polymers.

To get the answer and workings of the average repeat unit molecular weight for co-polymers 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 **Polymer**** **under **Materials and Metallurgical**

Now, Click on **Average Repeat Unit Molecular Weight for Co-polymers **under **Polymer**

The screenshot below displays the page or activity to enter your values, to get the answer for the average repeat unit molecular weight for co-polymers according to the respective parameter which is the **Mole Fraction(s) (f _{1},f_{2})** and

**Molecular Weight(s) (M**

_{1},**M**

_{2}).Now, enter the values appropriately and accordingly for the parameters as required by the **Mole Fraction(s) (f _{1},f_{2}) **is

**8,2**and

**Molecular Weight(s) (M**

_{1},**M**is

_{2})**4,6**.

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia solves for the average repeat unit molecular weight for co-polymers and presents the formula, workings and steps too.