CHEM 2770 Midterm: CHEM 2770 39417 Exam
31 Jan 2019
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Instructions: please mark the answer sheet using pencil only, enter your name and student number on the answer sheet, the exam consists of multiple choice questions. Enter your answers on the answer sheet: there is only 1 correct answer for each question, please read each question carefully. If the enthalpy change h for a reaction is +4. 11 kj/mol, the reaction is: at equilibrium, endergonic, endothermic, exergonic, exothermic. Oh: ether and aldehyde, hydroxyl and aldehyde, hydroxyl and carboxylic acid, amino and ester, hydroxyl and ketone. The dissolution of sodium chloride is driven primarily by: solution enthalpy, organized water cages, heat evolved by the reaction, entropy, the sodium-potassium atpase. The ph of a sample of blood is 7. 4, while gastric juice is ph 1. 4. 25 ml of 0. 1m naoh were added to 100 ml of 0. 1m aspartate solution, ph=pi. What is the new ph? pka values for aspartate are 1. 88, 3. 65 (r-group) and 9. 60: 2. 76, 3. 17, 4. 13, 3. 65, 9. 60.
