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The number average molecular mass and weight average molecular mass of a polymer are $30, 000$ and $40, 000$ respectively. The PDI of the polymer is

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Important Questions on Polymers

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

The polydispersity index of the polymer is always:

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

A polymer sample is made up of

30 %

molecules of mass

20, 000, 40 %

30, 000

and the rest mass of

60, 000

. Its number average molecule mass is

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

Which option is correct for synthetic polymer?

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

What is PDI (Poly Dispersity Index)?

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

Write the formula to determine 'weight average molecular weight' of polymers.

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

The Poly Dispersity Index

(PDI)

of a polymer is

1.5 .

If its number average molecular mass is

30, 000,

calculate its weight average molecular mass.

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

In a polymer sample, the molecular weight of

30

molecules is

25, 000

, molecular weight of

25

molecules is

30, 000

and molecular weight of another

40

molecules is

43, 000

then calculate the weight average molecular weight (

{\bar{M}}_{w}

) of the polymer.

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

In a polymer, there are

300

molecules with a molecular weight of

100, 200

molecules with a molecular weight of

1000

and

100

molecules with a molecular weight of

10000 .

The number average molecular weight of polymer is

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

In a polymer sample, the molecular weight of

10

molecules is

20, 000

, molecular weight of

30

molecules is

35, 000

and molecular weight of another

20

molecules is

40, 000

then calculate the number average molecular weight (

{\bar{M}}_{n}

) of the polymer.

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

In a polymer sample

35 %

of molecules have a molecular mass

24, 000

40 %

have

30, 000

and the rest molecules have a molecular mass of

50, 000

. What is the number average molecular mass of the polymer?

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

The number average molar mass and mass average molar mass of a polymer are respectively 30,000 and 40,000. The polydispersity index (PDI) of the polymer is

HARD

Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

Write formula for number average molecular weight (

{\bar{M}}_{n}

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

Write a short note on molecular mass of polymers.

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

Polymer properties are closely related to their molecular mass, size and _____ .

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

Why PDI of proteins is one?

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

Explain the determination of molecular mass of polymers by number average molecular weight method.

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

The number average molecular mass

({\bar{M}}_{n})

and the weight average molecular mass

({\bar{M}}_{w})

of the synthetic polymers are related as:

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

Explain the determination of molecular mass of polymers by weight average molecular weight method.

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

Why molecular weight of polymers is taken as average molecular weight. How many types average molecular weight can be represented? Explain each type.

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Chemistry>Organic Chemistry>Polymers>Calculation of Molecular Masses of Polymers

In a polymer sample, the molecular weight of

20

molecules is

20, 000

, molecular weight of

40

molecules is

30, 000

and molecular weight of another

20

molecules is

40, 000

then calculate the number average molecular weight (

{\bar{M}}_{n}

) of the polymer.

The number average molecular mass and weight average molecular mass of a polymer are 30,000 and 40,000 respectively. The PDI of the polymer is

Important Questions on Polymers

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The number average molecular mass and weight average molecular mass of a polymer are $30, 000$ and $40, 000$ respectively. The PDI of the polymer is