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4/22/2013 Standards: 5 (Acid Base) and Biology (NCLB practice) Objectives: ● Students will perform well for the State NCLB Bio Test (answers will be on-line.

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Presentation on theme: "4/22/2013 Standards: 5 (Acid Base) and Biology (NCLB practice) Objectives: ● Students will perform well for the State NCLB Bio Test (answers will be on-line."— Presentation transcript:

1 4/22/2013 Standards: 5 (Acid Base) and Biology (NCLB practice) Objectives: ● Students will perform well for the State NCLB Bio Test (answers will be on-line tonight for NCLB 1 and NCLB 2) ● Students will improve their calculation capabilities for neutralization DO NOW: 1. File Dump - Do as much as you can without looking at your sheet HOMEWORK: 1. Study for Mr. Wigger's CST points with 50 questions. =========================================================== STAMPED: ● Journal 4/19 (What you learned, or relearned about biology) 1. SN - Ch 19.3 p SN - Ch 19.4 p (10 pts for both together) Std 5

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3 File dump for CST LeChat stress LeChat wants LeChat does shift Conversions g mol atoms/molecules chart Avo Diatomic elements NOH on 17 ↑ ↓ Trends electronegativity ionization energy atom size ion size mass metal non-met reactivity vertica l & horian tal arrow s loose

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5 4/23/2013 Standards: Many Objectives: ● Check for understanding with Mr. Wigger's CST Test (50 q's, 100 pts) DO NOW: 1. Clear your desk and floor around you except for: scantron, pencil, eraser, scratch paper, periodic chart HOMEWORK: 1. SN - Ch 22 p (5 pts) Std 10 ===========================================================

6 Remember: ·numbers will be simple ·use 2 sig. figs. only ·after you set up the problem, look for numbers top & bottom that cancel easily if rounded.

7 File dump for CST LeChat stress LeChat wants LeChat does shift Conversions g mol atoms/molecules chart Avo Diatomic elements NOH on 17 ↑ ↓ Trends electronegativity ionization energy atom size ion size mass metal non-met reactivity vertica l & horian tal arrow s loose

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9 Put papers into 4 stacks scratch The following in order with smallest # on top: tests scantron charts Spread so #'s show

10 Follow these directions or you will lose 20 points on this test: 1. Get your scantron (side counter), and get the test number you used yesterday 2. Complete your test. 3. Put your scantron back in your periods scantrons in order : Example: 5 must be between 4 & 6 4. Put your test back in with the other tests in order : Example: 18 must be between 17 & 19

11 4/24/2013 Standards: 7 (Chemical Thermodynamics) Objectives: ● Students will perform well for the State NCLB Bio Test (answers will be on-line tonight for NCLB 1 and NCLB 2) ● Will be able to calculate Specific Heat problems & Heats of V and E DO NOW: 1. Combine front and back of heating curve so the front side shows both 2. Do this calculation: Given: specific heat of water (ice, solid on Heating Curve Chart), 20 grams of ice, temp change is -40°C to 15°C Find: How many Joules (J) are required. HOMEWORK: 1. Learn & be solid on File Dump and what each part of it means and how to use. 2. Browse through Mrs. Taylorson's CST prep. to see if you need to brush up on anything for the Chem CST. Learning Center > Quiz/Test Reviews (bottom of the page) =========================================================== STAMPED: ● Journal 4/22 (describe how the File Dump or other material covered on Monday 4/22 helped you with Mr. Wigger's CST) 1. SN - Ch 22 p (5 pts) Std 10 RESPONDERS

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13 1What is your opinion of the difficulty of this test? 1 = easy - 5 highest level of difficulty A 1 B 2 C 3 D 4 E 5

14 This represents the responses for the Chemistry CST. 1 = easy, 5 most difficult Period 1 Period 2 Period 3 Period 5 Period 6

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16 4.18 J g°C Given : Find g °C J g °C J SLOPES on heating curve SPECIFIC HEAT 5--> Prob. 1 (water) - find g Prob. 2 (ethanol) - find J Table 16-2 p > J g°C

17 Heat of Vaporization gas liq Heat of Fusion liq solid

18 Given : Find mol kJ mol kJ Flatlands on heating curve Heat of FUSION and Heat of VAPORIZATION Prob 1 water - find mol 88 kJ Prob 2 - ethanol - find kJ 7.5 mol Table 16-6 p. 502 kJmol kJ mol

19 GivenFind Page 502

20 If 25 mol of ammonia is all in at -77.7°C, how much energy (kJ) is required to melt all of the ammonia? ( Ammonia freezes at -77.7°C, and melts, and the heat of fusion is 5.66 kJ/mol )

21 Heat of fusion heat of vaporization specific heat formulas given on back of periodic chart electron config for all elements in one column are the same how elements react are the same within a column (ratios of the element to the thing it is reacting with)

22 Textbook p. 502 If 25 mol of ammonia is all in at -77.7°C, how much energy (kJ) is required to melt all of the ammonia? ( Ammonia freezes at -77.7°C, and melts, and the heat of fusion is 5.66 kJ/mol )

23 NCLB Bio Practice 1 (Done on Thursday) NCLB Bio Practice 2 (Today - Fri 4/19/13)

24 4/26/2013 Standards: 7 (Chemical Thermodynamics) Objectives: ● Students will be able to calculate 2 problem types: a. specific heat problems b. heats of vaporization or fusion DO NOW: 1. Handout sheet of specific heat and heats of vaporization or fusion probs (due end of period) (5 pts) Std 7 HOMEWORK: 1. None =========================================================== STAMPED: ● Journal 4/25 or 4/24 (What you learned, or relearned about specific heat calcs and heats of vaporization and fusion) 1. SN - Ch 20.1 p (5 pts) Std

25 find 39.5 J 148 J 2.05 J find Specific heat - practice problems 2.5 kg find 725 g find 82 g 0°C ---> 32°C 100°C ---> 145°C find -82°C ---> -5°C 74°C ---> 30°C Q# J mass ΔT Pract. Probs. Ch Thermochem. Eqns. Heat of Vaporization/Fusion - practice problems 5.5 find 1.7 find find 2.6 water ammonia (NH 3 ) methanol ethanol NH 3 Q#molkJ substance Name:_______________ Date:_______ Period:__ Direct ions: Sh ow calcs! Answer questio ns next to each line, or number 1-10 on back and show calcs there with note on front to look at the back. This page was use to make:

26 Student solves GivenFind

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28 Student solves GivenFind

29 g°C 2J

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