Science 10 P78:  Activity 13C from the old Science Probe 9 text.

Science 10 P56:  Today we learned about the Earth - Moon System.  For Thursday complete pg 380 # 2-15 in sentences (where appropriate).  Label your diagrams and make them easy for the reader to understand.

Chemistry 11: Chemistry 11:  Unit 9 # 9-16, due Wednesday.

Chemistry 12:  Do the calculations for Lab 20H Part I and draw a graph as indicated.  Don't do every specified volume of NaOH - in class we did 0.00, 5.00, 10.00, 20.00. 24.00 and every second volume thereafter.  13 calculations in total.  Not due Thursday.



Monday, May 14

Chemistry 11:  Unit 8 # 57-67 due Tuesday.

Chemistry 12:  Unit 4 # 84-89 due Tuesday.  I would like to check Friday's assignment on Tuesday as well:  U4 # 74-79.  We are still working away on Lab 20G, no due date set yet.

84.  0.024 M SO₃^2-

85.  0.0019 M OH^-, pH 11.28, pOH 2.72,     5.3 x 10^-12 M H⁺

86.  0.059 M N₂H₄

87.  K_b = 1.04 x 10^-3

88. pH 11.50

66.  0.929 g LiOH

80.  K_a = 2.06 x 10^-10

Science 10 P78:  Earth-Moon System today... Read 12.2 from a hand-out and do pg 380 # 2-15 in fine sentences.

Science 10 P56:  Lab 13B:  Model of our Solar System.  Nice Work!  Terrific looking models you have all made.  You will be given a little time to do the discussion questions later.