Q10HE Neutral lysine can be written HL... [FREE SOLUTION]

Chapter 10: Q10HE (page 230)

Neutral lysine can be written HL. The other forms of lysine are $H_{3} L^{2 +}, H_{2} L^{+},$ and $L^{-}$ . The isoelectric point is the pH at which the average charge of lysine is $0$ . Therefore, at the isoelectric point, $2 [H_{3} L^{2 +}] + [H_{2} L^{+}] = [L^{-}]$ . Use this condition to calculate the isoelectric pH of lysine.

Short Answer

Expert verified

The isoelectric pH of lysine as found to be $9.95$

Step by step solution

Definition of isoelectric pH.

The isoelectric point is the pH at which a molecule has no net electrical charge or is electrically neutral. pH is the conventional abbreviation for the isoelectric point.

The pH of lysine.

The fraction of lysine in the form of $H_{3} L^{2 -}$ is negligible so the expression of electro neutrality technique reduced to $[H_{2} L^{+}] = [L^{-}] H_{3} L^{2 -}$ . Hence the isoelectric

$pH = \frac{1}{2} ({pK}_{2} + {pK}_{3}) = 9.95$

Unlock Step-by-Step Solutions & Ace Your Exams!

Full Textbook Solutions
Get detailed explanations and key concepts
Unlimited Al creation
Al flashcards, explanations, exams and more...
Ads-free access
To over 500 millions flashcards
Money-back guarantee
We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Recommended explanations on Chemistry Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

91影视

Short Answer

Step by step solution

Definition of isoelectric pH.

The pH of lysine.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Making Measurements

Organic Chemistry

Chemistry Branches

Inorganic Chemistry

Kinetics

Physical Chemistry

Study anywhere. Anytime. Across all devices.

91影视

Neutral lysine can be written HL. The other forms of lysine areH3L2+,H2L+,andL-. The isoelectric point is the pH at which the average charge of lysine is 0. Therefore, at the isoelectric point,2[H3L2+]+[H2L+]=[L-]. Use this condition to calculate the isoelectric pH of lysine.

Short Answer

Step by step solution

Definition of isoelectric pH.

The pH of lysine.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Making Measurements

Organic Chemistry

Chemistry Branches

Inorganic Chemistry

Kinetics

Physical Chemistry

Study anywhere. Anytime. Across all devices.