Answered: Calculate the number-average molar mass…

Calculate the number-average molar mass and the weight-average molar mass of a mixture of equal amounts of two polymers, one having M = 62 kg mol−1 and the other M = 78 kg mol−1.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 96QRT

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Question

Calculate the number-average molar mass and the weight-average molar mass of a mixture of equal amounts of two polymers, one having M = 62 kg mol⁻¹ and the other M = 78 kg mol⁻¹.

Definition Definition Large and very high-molecular-weight substances that consist of hundreds to thousands of repeating units. Polymers are also known as macromolecules. Number-average-molecular weight is the measuring system for the polymers.

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