Polytetrafluoroethylene (Teflon) has a repeat unit with the formula F₂C¬CF₂. A sample of the polymer consists of fractions with the following distribution of chains:
Average no. Amount (mol)
Fraction of Repeat Units of Polymer
1 273 0.10
2 330 0.40
3 368 1.00
4 483 0.70
5 525 0.30
6 575 0.10
(b) Determine the number-average molar mass of the sample.



Answer :

The molar mass of the sample is 33006.6 g/ mol.

The molar mass of a compound defines the mass of one mole of that specific substance and a wide variety of grams per mole of a compound. In other phrases, the molar mass is the full mass of all the atoms in grams that make a mole of a particular molecule. therefore, the devices of molar mass are grams/mole.

In chemistry, the molar mass of a chemical compound is described because the mass of a pattern of that compound is divided through the quantity of substance which is the number of moles in that pattern, measured in moles. The molar mass is a bulk, now not molecular, belongings of a substance.

The molar mass is the mass of all of the atoms in a molecule in grams according to the mole. To calculate the molar mass of a molecule, we first gain the atomic weights from the character elements in a periodic table. We then rely on the number of atoms and multiply it by the character atomic masses.

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