Chemistry 12: Unit 4 # 74 - 79 due Thursday. Lab 20G due Thursday.
Ka Calculations Answer Key
74. [H+] = 6.7 x 10-5
75. pH 6.16
76. [HCOOH] = .78 M
77. Ka = 9.38 x 10-3
78. [H2CO3] = 0.010 M
79. pH 4.89
80. Ka = 2.06 x 10-10
Chemistry 11: Today started with review of atomic radius, then we took notes on Ionic Bonding, then we read pg 171 - 176. Unit 8 # 62-67 is due Thursday. Lab 11A Part III is not due Thursday.
Monday, May 6
Chemistry 11: Unit 8 # 31-39 was collected. Read pg 170-175 and do Unit 8 # 53-55, 57-61
Chemistry 12: Unit 4 # 69 was collected. Finish Lab 20G (all parts to do with Part I to Part IV, plus a fine conclusion). Finish Lab 20H Part I. Unit 4 # 70 due Tuesday. Quiz on Hydrolysis.
Friday, May 3
Chemistry 11: Unit 8 # 13-20, 22-27 was collected. Watch Mendeleev's Business Card on Youtube. Read section 8.2 and do Unit 3 # 31-39. There was a homework Quiz today on Unit 8 # 13-20, 22-27.
Chemistry 12: Read 4,13 about Hydrolysis. Do # 69 (Acidic - f,i,j ; Basic - a,b,d,g ; Neutral - c,e,h). Finish Lab 20G due Thursday. Quiz like pg 69.
Thursday, May 2
Chemistry 12: Quiz on pH, read 4.16 and do 94,95,97,100, 102,104. Lab 20G. Minireview 4.11 WS.
Chemistry 11: The Lab 11A Graphs were collected today. Read p 144-156. Do Unit 8 # 13-20, 22-27 which is due Friday. Start Lab 11A part III if you are done.
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