« previous next »

Author Question: The weight average molecular weight of a polymer was found to be 30,000, and the number average ... (Read 113 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?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

The frequency of competition according to the number of species involved. The frequency of competition according to the number of species involved.
Estimating the molecular weight of a protein Estimating the molecular weight of a protein
The features found in a long bone. The features found in a long bone.
A sampling of the modified and unusual bases found in tRNAs A sampling of the modified and unusual bases found in tRNAs
The average weight gain between Thanksgiving and New Year's Day is about a pound The average weight gain between Thanksgiving and New Year's Day is about a pound
What would your average (mean) number of cells per cluster be? What would your average (mean) number of cells per cluster be?
Video: Blood Flow Through the Kidneys

For a complete list of videos, visit our video library