Chemistry 12:  U4 # 84-88, 65, 70(a-c).  Your Acid Base unit Test will be on the double block class after the May Long Weekend.

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 9(P56):  pg 344 # 1-7, 11.  Be sure to write the equation, fill in the values, and write a response with the correct units whenever you are solving numerical problems.

Chemistry 11:  Atomic Theory Practice Test due Wednesday.  Lab 6D due Tuesday.  Wanna write the TRU Chem 11 contest instead of doing your Atomic Theory Unit Test?