Chemistry 12:   Today we did a minireview of 3.1 o 3.4 and we finished the Solubility Lab.  We did U3 # 45-51, which is due on Monday.  Answers are shown below.

44.  0.20 g PbSO₄

45.  0.028 g BaCrO₄

46.  K_sp = 0.00194

47.  [Ag₂CrO₄] = 6.5 x 10^-5

48.  1.1 g/L CaSO₄

49.  2.1 x 10^-4 g/L 

50.  K_sp = 1.1 x 10^-49

51.  1.2 x 10^-10 

Chemistry 11:  We wrote our Moles Unit Test.

Science 10:  I collected Lab 23 (Neutralization Reaction).  We took notes on Energy Forms, then we did the Chemistry Practice Test.   On Monday, there will be a Chemistry Unit Test.  And I would like to do binder check too, but I forgot to remind you.  The binder check will be on Tuesday.