CHEM 102 Midterm: CHEM 102 Drexel CHEM 102 Exam 3 WINTER 07 08 no answers
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On the answer sheet (scantron) write your name, student id number, and recitation section. Choose the best (most correct) answer for each question and enter it on your. 3: po4, hso4, which of the following is not a conjugate acid-base pair, ch3cooh and ch3coo, ch3nh3, h2so3 and so3, hcooh and hcoo- 2: methylamine, ch3nh2, acts as a weak base in water. The products of the reaction are _____ and _____: oh- and ch3nh3, h3o+ and ch3nh3, h3o+ and oh, h3o+ and ch3nh- Is this solution acidic or basic: 3. 34; acidic, 3. 34; basic, 9. 40; basic, 10. 66; basic, phenolphthalein is an acid-base indicator that is colorless in its acid form and pink in its basic form, changing at ph = 8. 5. Bromocresol green is yellow in its acidic form and blue in its basic form, changing at ph = 4. 8. A solution is colorless with phenolphthalein and blue with bromocresol green. The ph of the solution is: 2. 86, 3. 68, 4. 18, 4. 62.
