Monday: Today we went over melting point trends for metals and ionic compounds and then learned how to draw Born-Haber cycles and calculate lattice enthalpy using them. Here’s the notes.
HW: Finish Google Classroom essays, read alloy pages of packet and finish Born-Haber problems in packet.
Tuesday: Complex ion naming and start crystallization lab (make slides which we put away in cupboard under lab bench).
Wednesday: Observe crystals and then review. I went over some common mistakes in essays and then had some practice questions in a google doc that we did in groups (used the carousel technique – groups answered question on big paper and then rotated to see if anything needed to be added/changed).
Friday: Started with organic naming and then review of Lewis structures + more advanced lewis structures (formal charge and exceptions to the octet rule). Here’s the notes including answers to organic naming.
Videos for today:
- Here’s a link to my lectures on organic naming (watch the first two).
- Basic Lewis structures (from first year chem)
- Resonance structures
- Expanded Octet form Paul Groves)
- Formal Charge (There’s lots of videos on youtube for this. Formal charge is not a real charge it is just a way for us to figure out which lewis structure is best, particularly for atoms that can have more than 8 valence electrons.)