12 thoughts on “37. Monday, Dec. 7, 2009 Exam 3”

1. chem111-mjknapp Post authorDecember 8, 2009 at 8:17 am

   Hi Priya,
   sorry, but the bonus point period has ended.
2. Jay Gilbert December 7, 2009 at 10:35 pm

   Will the answers be posted for the tests soon? Thanks
3. Priya December 7, 2009 at 1:40 pm

   Just posting for extra points!
4. chem111-mjknapp Post authorDecember 5, 2009 at 7:43 pm

   Hi Mike,
   The exam will cover Chapter 8 and Chapter 9.1. 9.2. But there are things that should be familiar to you from early in the semester that can help you on this exam – for example, knowing which group oxygen is in. So I would definitely focus on the relevant chapters, and the assigned HW, to prepare.
5. Michael DiBenedetto December 5, 2009 at 5:29 pm

   How much do we have to know from Ch. 7 and before, to succeed in the third exam?
   Thank you
   MikeDB
6. chem111-mjknapp Post authorDecember 2, 2009 at 9:09 am

   Hi Shahzad,
   there will be no sheet relating molecular shape to hybridization. You will need to know how to think about hybridization, geometry, bond polarity –> and molecular polarity. So tear into the book homework (answers are posted for Ch 8 and Ch 9). For more practice in visualizing shapes, make models of the basic electron-pair geometries (sp, sp2, sp3, sp3d, sp3d2 hybridized) using marshmallows and toothpicks, or whatever else you can ‘scavenge’ from the dining commons.
7. Shahzad Master December 2, 2009 at 1:02 am

   yes, are there going to be any charts provided as to what kind of shapes are formed with so and so bonding pairs and so and so lone pairs. or are we expected to know all of the shapes.31
8. chem111-mjknapp Post authorDecember 1, 2009 at 10:49 pm

   Hi Kyle and Alexander,
   I will get through chapter 9, section 1 and 2 for sure. They will definitely be on the exam. And you’ll need to imagine the 3-D shapes of molecules. I know that is hard, but it is an absolutely crucial skill to working with molecules (especially if you’re a biochemist).
9. Alexander Assetta December 1, 2009 at 10:14 pm

   He said in class on monday that whatever he covers as of friday will be on the exam but that doesn’t necessarily mean just the first two sections.
10. Kyle MacNichol December 1, 2009 at 9:40 pm

    So just to be absolutely correct, only sections 1 and 2 will be covered from ch. 9?

    And the test will be the same format as the previous tests?

    And to reiterate/rephrase Patricia’s question…what information/charts/etc will we get for the test?

    thank you!
11. Patricia Phelan December 1, 2009 at 6:55 pm

    are we getting any useful information for this exam?
12. Michael Rizzo December 1, 2009 at 3:15 pm

    Is there going to be a practice exam?