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17 A polymer ...

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17 A polymer contains 4% of sulphur it find out the minimum molar mass of the polymer

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300 c m^{3}

of an aqueous solution contains 1 g of a polymer: The osmotic pressure of such solution at 300 K is found to be

10^{- 3}

bar.The molar mass of the polymer is?

A polymer has following molar mass distribution:

Number of molecules Molar mass (

g / m o l

50

5000

75

6000

Calculate the number average molar mass (

{- M}_{n}

) of the polymer.

Q. The number average molar mass and mass average molar mass of a polymer are respectively

30, 000

40, 000

. The polydispersity index (PDI) of the polymer is:

Q. 200 c.c of an aqueous soloution contains 1.26 gms of a polymer. The osmotic pressure of such solution at 300 K is found to be

2.57 \times 10^{- 3}

bar. Calculate the molar mass of the polymer?

500 c m^{3}

of an aqueous solution contains

0.5 g

of a polymer. The osmotic pressure of such solution at

300 K

2 \times 10^{- 3} a t m

. What will be the molar mass of the polymer ?

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