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1/7/13 Stds: 3 (Conservation of Mass & Stoichiometry) O BJECTIVES : • Mem Ions 4 (coming Fri) - what will be on i

1/7/13 Stds: 3 (Conservation of Mass & Stoichiometry) O BJECTIVES : • Mem Ions 4 (coming Fri) - what will be on it (show where). • New program to encourage doing homework every day (see next 2 pages). • Be able to use "Chemical Reactions" Tutorial from ChemThink to help w

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1/7/13 Stds: 3 (Conservation of Mass & Stoichiometry) O BJECTIVES : • Mem Ions 4 (coming Fri) - what will be on i

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  1. 1/7/13 Stds: 3 (Conservation of Mass & Stoichiometry) OBJECTIVES: • Mem Ions 4 (coming Fri) - what will be on it (show where). • New program to encourage doing homework every day (see next 2 pages). • Be able to use "Chemical Reactions" Tutorial from ChemThink to help w HW, using candy & tooth pics. DO NOW: 1. Mix 2 x 3 from Solubility Lab Data Sheet (see today's handout), write skeleton equation, balance it, and tell what type of reaction it is. HOMEWORK: 1. Complete all equations for Row 2 (10 possible reactions) of Solubility Lab Data Sheet, write skeleton equations, balance them, and give reaction type. (5 pts) Std 3 (Turn in tomorrow before lab). BASKET: NONE Lab coming tomorrow

  2. Dear: ____________________________ Date:_____________ Regarding Mr. Wigger's Chem. Assignment:_____________________________________ (assignment name) That was: STAMPEDTURNED-IN / CW HW Your student ______________________________ did not do the assignment above that was due (circle one - M T W T F) __________________. (date due) I am concerned, as I am sure you are, that this behavior will make it almost impossible to pass my Chemistry class. Will you please remove a “favorite” activity from your student daily that will be difficult for your student to do without. I suggest one of the following: one lost meal daily, loss of cell phone for 1 week, a party that he/she will not be allowed to attend. The point is that your student will place more importance on the school work if your student knows there are consequences to his/her behavior. Please sign below and let me know what you have decided your student’s short term consequence (no longer than 1 week) should be. ________________________________ ________________________________________ (parent/guardian signature) (consequence)

  3. If parent letter not returned within one day, I will call your home to speak with your parents regarding: a. the letter they should have received from you b. the homework that was not done c. why you cannot pass my class without doing homework d. if they didn't get the letter, discuss consequences and/or schedule a parent conference For those of you with exceptionally heavy schedules, you must come to me in advance and let me know why you need an extra day or two to complete an assignment.

  4. At the end of stamping each day, anyone who did not complete their homework, comes to front of class for their letter home. If you don't do your homework and fail to come up for your parent letter, will get 200 sentences to write when I realize you have missed picking up your letter.

  5. Notebooks for 2nd Semester What to keep: a. Stamp section: 3 printouts, new Notebook Grading Sheet, and new Stamp Sheet b. all papers from MISC section Course Requirements Student Safety Contract Acceptable Use Policy If you are new to my class, you need for Wed to start your notebook: a. 3-ring binder, 1.5" thick rings b. 15 dividers

  6. Reaction types: a. SYN - Synthesis – p. 284 b. COM - Combustion – p. 285 c. DEC - Decomposition – p. 286 d. SR - Single Replacement – p. 287 e. DR - Double Replacement - p. 290 f. Ox-Red - Oxidation/Reduction – p. 636 g. AB - Acid/Base p. 295 Video of this will be on-line for anyone absent or wants to see it again. 2x3 __ FeCl3 + __ Al2(SO4)3 ----> __ Fe + __ Al Reaction type:____

  7. 2x4 __ FeCl3 + __ HCl ----> __ Fe + __ H Reaction type:____ 2x5 __ FeCl3 + __ MnSO4 ----> __ Fe + __ Mn Reaction type:____

  8. 2x6 __ FeCl3 + __ Sr(NO3)2 ----> __ Fe + __ Sr Reaction type:____

  9. ChemThink.com "Chemical Reactions" Run through to 3 equations summarized

  10. Balancing reactions using a list of atoms on each side of equation use scales (1 per each group of 4 - discuss sig. figs & Cons. of Mass) w ChemThink.com tutorial "Chemical Equations" - balance each after doing on ChemThink.com unbalanced balanced 1. __ Cu + __ O2 ----> __ + __ 2. __ CH4 + __ O2 ----> __ + __ 3. __ NH3 + H2 ----> __ + __

  11. Balance Equations using ChemThink.com unbalanced balanced 1. __ KClO3 ----> __ KCl + __O2 2. __ Al + __ O2 ----> __ Al2O3

  12. 1/8/13 Stds: 3 (Conservation of Mass & Stoichiometry) OBJECTIVES: • Complete LAB - Solubility of Some Ionic Cmpds DO NOW: 1. Read lab sheet silently: Solubility of Some Ionic Cmpds HOMEWORK: 1. SN Ch 11.1, p. 137-140 NOTICE - "Real World Connection on p. 140 will be worth 2 of the 5 pts for this assignment. (5 pts) Std 3 BASKET: Complete all equations for Row 2 of Solubility Lab Data Sheet (10 reactions) (5 pts) Std 3

  13. 1. movie & next pageHCl-NaCO3 happens fast 4w9 HCl with Na2CO3 2.moviefor arranging chemicals 1-12 3.movie for moving black with white then do demo on how to move the black vs white as demo 4. movie for FeCl2 false reading 5. movie for Procedure for Horizontal then Vert. (2) 6.movie for 2nd drop 7.movie for teamwork 8.movies for cleanup (2) a. one drop b. 1-3 rows c. clean-up at the end of the lab

  14. HCl w Na2CO3 G How do we mark (see p. 1 #4) Show vid of gas forming

  15. first job - decide jobs go-fer recorder 2 droppers 2nd job go-fer get chemicals, & papers 3 rd job organize chemicals in order 1-12

  16. 1/9/13 Stds: 3 (Conservation of Mass & Stoichiometry) OBJECTIVES: • By working in gps of 4, be able to use Solublity Chart (handout) • Be able to work mol <---> particles problems DO NOW: 1. Play 3 rounds of slap-it using your card decks that now include everything on the Memorize ions project. HOMEWORK: 1. Ch 11.1 p. 311 1-3 (5 pts) Std 3 (See on-line video showing you how to do these problem types. Link on HW page) (5 pts) Std 3 2. Card deck for all of the ions and acids on the Mem. Ions Sheet (5 pts) BASKET: Journal 1/7/13 (1st day of scool) and 1/8 (lab) 1. SN Ch 11.1, p. 137-140 NOTICE - "Real World Connection on p. 140 will be worth 2 of the 5 pts for this assignment. (5 pts) Std 3 Stamp Sheets: Weeks 1-3 (front) 4-6 (back)

  17. Density Find Given ?

  18. How to do tonight's homework 1 mol = 6.02 x 1023 This can be used as a conversion factor to figure out these problems. If given is moles use this one If given is particles use this one 6.02 x 1023 particles 1 mol 1 mol 6.02 x 1023 particles

  19. 1/10/13 Stds: 3 (Conservation of Mass & Stoichiometry) OBJECTIVES: • Use slap-it to help prepare for Mem Ions Quiz 4 coming Mon 1/14 • Be able to work mol <---> particles problems DO NOW: 1. 1st unsolved problem from handout - 8.88 mol FeO (given) find particles 2. Play 2 rounds of slap-it using your card decks that now include everything on the Memorize ions project. HOMEWORK: 1. mol <---> representative particls Conversion Practice - Tutorial - work all 10 problems (5 pts) Std 3 BASKET: Journal 1/9/13 1. Ch 11.1 p. 311 1-3 (5 pts) Std 3 (See on-line video showing you how to do these problem types. Link on HW page) (5 pts) Std 3 AT YOUR DESK 2. Card deck (44 cards) for all of the ions and acids on the Mem. Ions Sheet (5 pts)

  20. 1 mol = 6.02 x 1023 1 mol Na atoms = 6.02 x 1023 Na atoms 1 mol NaCl = 6.02 x 1023 NaCl molecules 1 doz = 12 1 doz eggs = 12 eggs 1 gross = 144 1 gross eggs = 144 eggs Representative Particles: molecules - example NaCl atoms - example Ti or N or Al

  21. Demonstration: to be used with Solubility Rules Handout Mix: AgNO3 (aq) + NaCl(aq) ----> Ag + Na a. Will there be a product for this ______ type of reaction? b. If so what are the 2 possibilities? _____________ or ____________ c. Now use the Solubility Rules to figure it out which of the possible products may be a solid (aka ppt). DR AgCl NaNO3 reaction type

  22. Representative particles can be atoms or molecules (aka formula units) Page 310

  23. A mole is just a number: 6.02 x 1023 ·If 1 mol Al atoms = 6.02 x 1023 Al atoms, How many atoms are in 3.5 mol of Al ?

  24. If you have 4.6 mol B, how many B atoms?

  25. 1/11/13 Stds: MISC OBJECTIVES: • Motivate all students to perform well this semester DO NOW: 1. Worksheet mol <---> particles, homework to BASKET within 1 min of start of class 2. Take at least 1 full page of notes while watching video "Gifted Hands the Ben Carson Story" HOMEWORK: 1. Ch 11.1 p. 312 4 (a-d), Appendix A, PP's, p. 876 1-4. Show your work same as worksheet from yesterday. BASKET: 1. mol <---> representative particls Conversion Practice - Tutorial - work all 10 problems (5 pts) Std 3

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