BIOL 2070 Study Guide - Midterm Guide: Glutamine, Acid Dissociation Constant, Phenylalanine

• School: University of Windsor
• Department: Biological Sciences
• Course: BIOL 2070
• Professor: Professor Noel

Document Summary

Please note: tests written in pencil can"t be returned for re-marking. A mixture of [ha] = 0. 05 m and [a-] = 0. 01 m of an unknown amino acid had a ph of 7. 5: identify the amino acid. [1 mark: what would the ph of this solution be upon addition of 0. 03 m naoh? ph = 8. 2 + log([0. 01+0. 03]/[0. 05-0. 03]) [2 marks] ph = 8. 2 + 0. 3 = 8. 5. Note: if the students calculate the incorrect pka in (i), they can still get full marks for (ii) if they do everything else correctly here. 5 m solution r ionic specie n of alanine h es (i. e. ha a had a ph of and a-) at thi f 2. 75. Calcu is ph. late the conc centrations o of the. [5 marks ph = p pka + log([a. H-bonded s structures be tween metha anol (ch3oh: and water. H-bond; minu us 1 for each h incorrect h.