This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following is a definition of the isoelectric point of an amino acid? a. The pH at ... (Read 146 times)

captainjonesify

  • Hero Member
  • *****
  • Posts: 543
on: Aug 23, 2018
Which of the following is a definition of the isoelectric point of an amino acid?
 a. The pH at which an amino acid has no net charge
  b. The pH at which the -NH2 group is completely protonated
  c. The melting point of an amino acid
  d. The conductivity of a 1 M solution of an amino acid in water

Question 2

What is the approximate value of the pKa of the -NH3+ of amino acids?
 a. 2
  b. 5
  c. 9
  d. 12

Question 3

What is the approximate value of the pKa of the -CO2H of amino acids?
 a. 2
  b. 5
  c. 9
  d. 12


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

T4T

  • Sr. Member
  • ****
  • Posts: 348
Reply #1 on: Aug 23, 2018
Answer to Question 1

a

Answer to Question 2

c

Answer to Question 3

a


captainjonesify

  • Hero Member
  • *****
  • Posts: 543
Reply #2 on: Aug 23, 2018
Both answers were spot on, thank you once again


T4T

  • Sr. Member
  • ****
  • Posts: 348
Reply #3 on: Aug 23, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Species-rich floras of chalk grassland compared to species-poor floras of acid soils. Species-rich floras of chalk grassland compared to species-poor floras of acid soils.
A closer look at the citric acid cycle A closer look at the citric acid cycle
Amino Acid Codons Amino Acid Codons
Acidic Amino acids and their Amides Acidic Amino acids and their Amides
Deoxyribonucleic acid (DNA) and Ribonucleic Acid (RNA) Deoxyribonucleic acid (DNA) and Ribonucleic Acid (RNA)
Finding the length given total distance and distance longer than other point Finding the length given total distance and distance longer than other point
Video: The 4 steps of translation Animation

For a complete list of videos, visit our video library