Chemistry 11

Today we wrote our quiz on Concentrations/Molarity and turned in the Concentration Assignment

Next we took notes on Conductivity of Aqueous Solutions and Precipitation Reactions

Next we did a very mini lab on solubility.  We wrote the molecular, total ionic and net ionic equations for the reaction of Lead (II) nitrate and sodium iodide.

Homework:  Hebden pg. 212 Ex: 30-35

Chemistry 11

Today we did the TRU chem contest........challenging!

Next we had some time to work on the Concentration Assignment followed by a short movie on elements in the periodic table.

Selected answers to the Concentration Assignment below:   (make sure you show all your work!)

1) 0.315 M         2) 285 mL     3d) 0.0447 moles of Fe⁺³   
                                                                    0.067 moles of SO₄^-2

4d) (NH₄)₂S ------- 2NH₄⁺  +   S^-2

6) [Cl^-] = 0.160 M             7) Final concentration of Na₂S = 0.72 M

9) When you mix the two solutions together, you must first find the NEW concentration of solution 1 and solutions 2 and then add them together Total LiF after mixing = 0.394 M 

10)  [Cl]=0.774 M

 

 

Biology 12

We took a short quiz on the respiratory system today followed by the FINAL fetal pig dissection.   We saw that the pigs lungs had 4 lobes on the left and three on the right hand side.

Next block we answered some cystic fibrosis questions and then watched the movie:  65 red roses.

You should have turned in the pig dissection questions as well as the cystic fibrosis questions

Homework:  Module Questions H

Chemistry 11

Today we looked at how to calculate the concentration of ions in solution and how to write dissociation equations.

Due on Friday:  Concentration Assignment   
Friday Quiz on concentration calculations

Thursday we will write the TRU chemistry contest

Biology 12

Today we went over internal and external respiration.  How does oxygen get into your blood?  How does it leave the blood and get into the tissues?

Module Questions:  E, F and G for homework. 

Biology 12

Today we went over the mechanics of breathing and looked at how the change in lung volume causes air to move in and out of your lungs.

We completed an inhalation and exhalation worksheet in class

Homework:  Complete external and internal respiration worksheet (yellow sheet) as well as module questions A-C. 

Chemistry 11

Today we looked continued our notes on solutions.  Be able to do calculations to find moles, Molarity or volume (L).

Next we studied dilution calculations.  What happens when you want to dilute a stock solution or what is the new concentration after dilution?   We diluted our stock solutions of potassium permanganate with new volumetric flasks.

Hebden:  pg. 98 Ex:  59 (a-c)  60 (a-c) and 62
pg. 102  Ex: 78-81