« previous next »

Author Question: The weight average molecular weight of a polymer was found to be 30,000, and the number average ... (Read 68 times)

TFauchery

  • Hero Member
  • *****
  • Posts: 500
on: Aug 23, 2018
The weight average molecular weight of a polymer was found to be 30,000, and the number average molecular weight of the compound was 20,000 . What is the PDI of the polymer?
 a. 0.0
  b. 1.0
  c. 1.5
  d. 0.5

Question 2

High degrees of crystallinity are associated with polymers with weak intermolecular forces.
 a. True
 b. False
  Indicate whether the statement is true or false


pangili4

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Aug 23, 2018
Answer to Question 1

c

Answer to Question 2

FALSE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Estimating the molecular weight of a protein Estimating the molecular weight of a protein
Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f Model of a sequential study in which two cohorts were followed beginning at age 20. One cohort was f
A spider from the genus Selenops, which have been found to be able to glide thro A spider from the genus Selenops, which have been found to be able to glide thro
Environmental and Lifestyle Factors of Weight Gain Environmental and Lifestyle Factors of Weight Gain
Calculate the number of sodium ions in 0.375moles of Na2CO3.10H20 Calculate the number of sodium ions in 0.375moles of Na2CO3.10H20
The effect of disruptive selection on bristle number in Drosophila The effect of disruptive selection on bristle number in Drosophila
Video: Bond types - Atomic structure and basis of bonds

For a complete list of videos, visit our video library