Question

chem help, please all questions

8. Estimate the average total charge on the following amino acid at pH 7.0 pKaR = 12.48 NH pKal = 2.17 H2N ОН NH2 pKa2. 9.04 А. +2 В. +1 с. о D. -1 Е. -2 9. Which one of the following compounds is a non-reducing sugar? ОН ОН OCH3 НО- НО. НО ОН ОН ОН ОН || ОН ОН он CH2OH ОН ОНІ ОН OCH3 ОН CH2OH ОН IV — А. В. С. D. Е. || ІІ. IV III and IV

Answer 1

8 The following neid amino acid has structure at pH=7 ثر H₂N ZI ANH3 Total charee is (+2-1) = t1 The correct option is B. +10. OH OH a. and 011 Howe HoX OH CH2OH OCH, он OH 11 are non-reducing sugar as there in potential - CHO group that can be produced. potential . The correct option is, E. I and IV