Chemistry 12:  U4 # 74-80.  Today I collected Lab 20B and unit 4 # 69, 71

K_a 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 12:  Unit 4 # 69, 71.  Lab 20B due Tuesday too.  Test next Friday on Acids and Bases (Unit 4).

Chemistry 12:  Today we learned how to find the Keq value for a Bronsted-Lowry equilibrium between a weak acid and weak base.  Unit 4 # 38 - 42 is due on Monday.  Lab 20B will be due on Tuesday.

Chemistry 12:  Unit 4 # 58 - 64.   Make sure that unit 4 # 47-57 (skip 54) is done too, from Monday.

Chemistry 12:  On Friday, we did Unit 4 # 31 - 37, and this was due today.  We learned about pH and pOH this afternoon, and you were asked to do Unit 4 # 47-57 (skip 54) for Tuesday.

Chemistry 12:  Unit 4 # 1-19, 21-24, and 28-30 should be done for Friday.

Grade 8 Volleyball:  Thanks for coming to the Super Tuesday Grade 8 Volleyball Wind-up Extravaganza Jamboree yesterday!  Stay tuned for more opportunities to play volleyball at RSS.

Chemistry 12: Unit 4 # 1-10 due Wednesday.  We started # 11-14, but this is not due until Friday. Please check the grades below to ensure that all is accurate.

Chemistry 12:  On Tuesday we did the Solubility Practice Test and spent time on Lab 19C, which is due Thursday.  Make sure to have me explain the UBC Engineering Leaders Breakfast to you on Thursday.  Test on Unit 3 (Solubility) on Monday.

Also, Okanagan College is having their open house on Nov. 9^th at 7pm. The event starts with a Freshman 15 seminar designed for High School Students and their parents- 15 things you need to know about the world of Post-Secondary whether you plan to attend OC or not. There will also be FREE APPLICATIONS at the event and a Draw for a $500 tuition voucher!”

Grade 8 Volleyball:  Practice on Wednesday at 7:00 pm.  Wind-up mini tournament on Tuesday right after school.

Chemistry 12:  Unit 3 # 81-86 was assigned today, and is due Monday.  Lab 19C is due Thursday. Solubility Test on Monday, Nov 14th.

Grade 8 Girls Volleyball:  Practice Today at 3:30.  League playoffs on Monday at Shuswap Middle School.  On Monday, meet at afternoon break at the bus stop.  Matches at 4:00 and 5:00 pm.  Home by 7:30ish.  Roster:  Madelin A, Isobel B, Marissa B, Khushi D, Devyn G, Cassidy L, Emily M, Lizzy M, Paige M, Sarah S, Morgan T, Samantha V,

Wind-up mini tournament with the boys team on Tuesday, November 15th, at RSS from 3:30 to 5:00.

Chemistry 12:  Unit 3 # 64, 65, 52, 53, 20 (e and f only),  # 29-33 due Friday.   I need Lab 16D from some of you still. Today we did lab 19C, and this will be due on the double block day next week.

Chemistry 12:  Unit 3 # 64, 65, 52, 53, 20 (e and f only).  Try some of the Selective precipitation problems:  U3 # 29-33.  I need Lab 16D from some of you still.

Grade 8 Girls Volleyball:  Practice Wednesday night at 7:00 pm.