Chemistry Honors – Classes 46 / 47 / 48

Dates

• Period B: Wednesday, April 22nd / Friday, April 24th / Monday, April 27th
• Period D: Thursday, April 23rd / Friday, April 24th / Tuesday, April 28th
• Period G: Thursday April 23rd / Monday, April 27th / Tuesday, April 28th

Classes 46 & 47: VSEPR Assignment Completion

• Finish all of the parts of the assignment (See prior posts)
• How do I draw a 3D structure? (there are rules!)
• Write down all of the information on the paper (to be handed in before exam)
• Make sure you know all of the names / angles / varieties
• Got resonance? how is this shown?

Class 48: Exam

• students will be given three formulas
• for each, the student will be asked to complete all of the parts practiced in class
• provided = Periodic Table
• to memorize = all shapes, angles, polarity

Sample Problem – Chlorite Ion

• valence electrons
• Lewis dot structure
• formal charges
• bond polarities
• lone pairs / bonding pairs
• electron geometry
• structure shape
• bond angles
• overall polarity
• 3D drawing