Q3/ Caleulate the solubility parameter for amorphous polylactie acid, which has a densityof 1.21g/cm3. Also, identify the best solvent for molecular weight determination. Explainyour reasoning. Note that the density for acetone, ethyl acetate, and tetrahydrofuran are0.791,0.902, and 0.889 g/cm3, repsectivily. Note H-1 g/mole, C-12 g/mole, N-14 g/mole,and 0-16 g/mole.CH3-Hpolylactic acid (C3H402)nноAceton:C3H60ethyl acetate :C4H8O2tetrahydrofuran :C4H80人人GroupMolar Attraction ConstantFin (MPa) cm' mol-CH,420--CH, -280>CH-140>C<0.P-phenylene1377-0-256-CO-685-COO512

Polylactic acid is thermoplastic polyester and obtained by the condensation of Lactic acid…

- Also, identify the best solvent for molecular weight determination. g. Note that the density for acetone, ethyl acetate, and tetrahydrofura and 0.889 g/cm3, repsectivily. Note H-1 g/mole, C-12 g/mole, N-14, ole.

- Also, identify the best solvent for molecular weight determination. g. Note that the density for acetone, ethyl acetate, and tetrahydrofura and 0.889 g/cm3, repsectivily. Note H-1 g/mole, C-12 g/mole, N-14, ole.

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter10: Properties Of Solutions

Section: Chapter Questions

Problem 31E: Common commercial acids and bases are aqueous solutions with the following properties: Density...

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Question

Q3/ Caleulate the solubility parameter for amorphous polylactie acid, which has a density
of 1.21g/cm3. Also, identify the best solvent for molecular weight determination. Explain
your reasoning. Note that the density for acetone, ethyl acetate, and tetrahydrofuran are
0.791,0.902, and 0.889 g/cm3, repsectivily. Note H-1 g/mole, C-12 g/mole, N-14 g/mole,
and 0-16 g/mole.
CH3
-H
polylactic acid (C3H402)n
но
Aceton:C3H60
ethyl acetate :C4H8O2
tetrahydrofuran :C4H80
人人
Group
Molar Attraction Constant
Fin (MPa) cm' mol
-CH,
420
--CH, -
280
>CH-
140
>C<
0.
P-phenylene
1377
-0-
256
-CO-
685
-COO
512

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