please explain. The peptide with the primary sequence shown below was submitted for extensive acid hydrolysis and 417 pm

[answerhappygod]

please explain.
The peptide with the primary sequence shown below was submitted for extensive acid hydrolysis and 417 pmol of S was recovered. How many combined pmoles of E and D would also be expected in that sample after the acid hydrolysis treatment? Just report the sum of pmols of E+D recovered.
417 pmol (D+E)
313 pmol (D+E)
209 pmol (D+E)
556 pmol (D+E)
The peptide with the primary sequence shown below was submitted for extensive acid hydrolysis and 417 pmol of S was recovered. How many combined pmoles of E and D would also be expected in that sample after the acid hydrolysis treatment? Just report the sum of pmols of E+D recovered.
14.00
15.03
12.97
do we need ka or kb for this ?
the amino acid side chains will have the highest probability of being found in the interior of a protein?
Which of the following amino acid side chains will have the highest probability of being found in the interior of a protein?
C
Y
Q
D
F