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Home Q & A Board Biology-Related Homework Help Biochemistry
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vigates vigates
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11 years ago
You have a solution of leucine at 0.1 gram in 100 ml. Give (a) the molar concentrations and (b) the structures of each ionic form of leucine that will be present at pH 7.4. The pKa values for leucine are 2.36 and 9.6.

I got the molar concentration to be 7.63mM for leucine. But what are the two structure of leucine?
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#1
Educator
11 years ago
Quote from: vigates (11 years ago)
I got the molar concentration to be 7.63mM for leucine. But what are the two structure of leucine?

Could you show your work?
vigates Author
wrote...
#2
11 years ago
.1g     x 1mol  x 1mL = 7.63 mM leucine
100mL  131g    .001L

Please let me know if I did this wrong.
wrote...
#3
Staff Member
11 years ago
Where did you get 131 from?
- Master of Science in Biology
- Bachelor of Science
vigates Author
wrote...
#4
11 years ago
Quote from: duddy (11 years ago)
Where did you get 131 from?

It is the molecular weight of leucine.
wrote...
#5
11 years ago
 aa
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