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Amity Institute Of Applied Sciences (AIAS, Amity University), Noida, India
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Number-Average Molecular Weight Solution

STEP 0: Pre-Calculation Summary
Formula Used
Number-Average Molecular Weight = Molecular Weight of Repeating Unit*(1-Probability of Finding Repeating Unit AB)
Mn = m*(1-p)
This formula uses 2 Variables
Variables Used
Molecular Weight of Repeating Unit - The Molecular Weight of Repeating Unit is the mass of a molecule of repeating units present in the polymer. (Measured in Gram)
Probability of Finding Repeating Unit AB- The Probability of Finding Repeating Unit AB is the possibility of finding repeating unit AB in a polymer chain.
STEP 1: Convert Input(s) to Base Unit
Molecular Weight of Repeating Unit: 18 Gram --> 0.018 Kilogram (Check conversion here)
Probability of Finding Repeating Unit AB: 0.1 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Mn = m*(1-p) --> 0.018*(1-0.1)
Evaluating ... ...
Mn = 0.0162
STEP 3: Convert Result to Output's Unit
0.0162 Kilogram Per Mole -->16.2 Gram Per Mole (Check conversion here)
FINAL ANSWER
16.2 Gram Per Mole <-- Number-Average Molecular Weight
(Calculation completed in 00.015 seconds)

9 Polymer Chemistry Calculators

Viscosity Number
Viscosity Number = (Flow Time of Polymer Solution/(Flow Time of Solvent-1))/Polymer Concentration Go
Average Functionality Factor
Average Functional Factor = (Mole of Each Reactant*Functionality)/Total Number of Moles Go
Number-Average Molecular Weight
Number-Average Molecular Weight = Molecular Weight of Repeating Unit*(1-Probability of Finding Repeating Unit AB) Go
Weight-Average Molecular Weight in General Step Reaction Polymerization
Weight-Average Molecular Weight = Number-Average Molecular Weight*(1+Probability of Finding Repeating Unit AB) Go
Number-Average Degree of Polymerization
Number-Average Degree of Polymerization = Number of Original Molecules/Number of Molecules at Specific Time Go
Polydispersity Index for Step-Reaction Polymers
Polydispersity Index = Weight-Average Molecular Weight/Number-Average Molecular Weight Go
Tensile Strength given Cross-Sectional Area
Tensile Strength = Force Applied on Material/Cross Sectional Area Go
Compressive Strength of Material
Compressive Strength of Material = Force/Cross Sectional Area Go
Deborah Number
Deborah Number = Time of Relaxation/Observation Time Go

Number-Average Molecular Weight Formula

Number-Average Molecular Weight = Molecular Weight of Repeating Unit*(1-Probability of Finding Repeating Unit AB)
Mn = m*(1-p)

What is Polymerization?

In polymer chemistry, polymerization is a process of reacting monomer molecules together in a chemical reaction to form polymer chains or three-dimensional networks. In chemical compounds, polymerization can occur via a variety of reaction mechanisms that vary in complexity due to the functional groups present in the reactants and their inherent steric effects.

How to Calculate Number-Average Molecular Weight?

Number-Average Molecular Weight calculator uses Number-Average Molecular Weight = Molecular Weight of Repeating Unit*(1-Probability of Finding Repeating Unit AB) to calculate the Number-Average Molecular Weight, The Number-Average Molecular Weight formula is defined as the total weight of polymer divided by the total number of molecules. Number-Average Molecular Weight is denoted by Mn symbol.

How to calculate Number-Average Molecular Weight using this online calculator? To use this online calculator for Number-Average Molecular Weight, enter Molecular Weight of Repeating Unit (m) & Probability of Finding Repeating Unit AB (p) and hit the calculate button. Here is how the Number-Average Molecular Weight calculation can be explained with given input values -> 16.2 = 0.018*(1-0.1).

FAQ

What is Number-Average Molecular Weight?
The Number-Average Molecular Weight formula is defined as the total weight of polymer divided by the total number of molecules and is represented as Mn = m*(1-p) or Number-Average Molecular Weight = Molecular Weight of Repeating Unit*(1-Probability of Finding Repeating Unit AB). The Molecular Weight of Repeating Unit is the mass of a molecule of repeating units present in the polymer & The Probability of Finding Repeating Unit AB is the possibility of finding repeating unit AB in a polymer chain.
How to calculate Number-Average Molecular Weight?
The Number-Average Molecular Weight formula is defined as the total weight of polymer divided by the total number of molecules is calculated using Number-Average Molecular Weight = Molecular Weight of Repeating Unit*(1-Probability of Finding Repeating Unit AB). To calculate Number-Average Molecular Weight, you need Molecular Weight of Repeating Unit (m) & Probability of Finding Repeating Unit AB (p). With our tool, you need to enter the respective value for Molecular Weight of Repeating Unit & Probability of Finding Repeating Unit AB 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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