Wednesday, April 3, 2013

Science 9

This week's assignment:
  • Complete Reading Check p.155
  • Complete Reading Check p.161
  • Complete 5.1 Worksheet

Science 8

Today's assignment:
 - Complete 12.1 Worksheets

Chemistry 11

Here's a video about the Mole
Khan Academy - The Mole & Avogadro's Number

This week's assignments:

Complete Practice Problems p.289 #1-2
Complete Practice Problems p.291 #3-4
Complete Practice Problems p.292 #5-6
Complete Practice Problems p.296 #7-8
Complete Section 10.1 Assessment p.296 #9-15
Practice Problems p.298 #16-17
Practice Problems p.299 #18-19
Practice Problems p.301 #20-21
Practice Problems p.301 #22-23

10.2 Section Assessment p.303 #24-31

Chemistry 12

This week's assignments so far:
  • Complete Exercises #1-14 from pages 110, 112, 114, 115, 117, 119
Here's a video intro to acids and bases.  It discusses Lewis Acids & Bases as well as the two we discussed.  You will not need to know what the Lewis Acids & Bases are.
Khan Academy - Acid Base Intro

Wednesday, March 13, 2013

Science 9

Today's assignment:
  • Complete 4.1 Worksheets
  • Complete 4.2 Worksheets
  • Complete Reading Check p. 124
  • Complete Reading Check p. 130
  • Complete Reading Check p. 132
  • Complete Reading Check p. 141

Science 8

Today's assignment

Assignment (each worth 5)
Ch11 Vocab (20)
Reading Check p.417
Reading Check p.420
Reading Check p.424
11.1 Worksheets (10 marks each)
11.2 Worksheets (10 marks each)
11.3 Worksheets (10 marks each)
BONUS:  Ch.11 Review p.436 (+10)
#1-13

Chemistry 11

Today's assignment:
Assignment
Practice Problems p.193 #1-2
Section 7.1 Assessment p.193 #3-11
Practice Problems p.196 #12-13
Section 7.2 Assessment p.199 #14-22
Section 7.3 Assessment p.203 #23-29
Section 8.1 Assessment p.216 #1-6
Practice Problems p.220 #7-8
Practice Problems p.225 #9-12
Section 8.2 Assessment p.229 #13-22
Section 8.3 Assessment p.236 #23-29
Practice Problems p.239 #30-31
Section 8.4 Assessment p.244 #32-38

Chemistry 12

So far in Chemistry 12 we have been working on Unit 3 and I have assigned questions #1-69.
The lab I will collect from you hopefully before Spring Break (so Friday).

An explanation of the results today.  It turns out that Copper (II) gets turned into Copper (I) in the presence of iodide ions so that explains why a lot of you got the bluish-green copper when burning the first precipitate.

Not sure how to explain the second precipitate though as Strontium should not have precipitated until the Carbonate/Phosphate was added.  Although Maran and Julianna did have some strontium colour in their first precipitate (which shouldn't have happened as Strontium Iodide doesn't precipitate).  So perhaps I just didn't add enough strontium to the original sample.  Which means the Q for Strontium Phosphate/Carbonate was less than the Ksp so nothing precipitated.

Anyways, write your lab report based on your observations, not based on what was supposed to happen.  Knowing what was supposed to happen might help you in your conclusion/discussion but use original observations to direct your answers.

Thursday, March 7, 2013

Science 9

Today's assignment:
  • Complete Reading Check p.124
  • Complete Reading Check p.130

Chemistry 11

Today's assignment:
  • Complete Practice Problems p.225 #9-11
  • Complete 8.2 Section Assessment p.229 #13-22