4/22/2013 standards : 5 (acid base) and biology (nclb practice) o bjectives :
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4/22/2013 Standards : 5 (Acid Base) and Biology (NCLB practice) O bjectives : ● 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 D O NOW : - PowerPoint PPT PresentationTRANSCRIPT
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 neutralizationDO NOW: 1. File Dump - Do as much as you can without looking at your sheetHOMEWORK: 1. Study for Mr. Wigger's CST - 100 points with 50 questions.===========================================================STAMPED: ● Journal 4/19 (What you learned, or relearned about biology) 1. SN - Ch 19.3 p. 264-266 SN - Ch 19.4 p. 267-269 (10 pts for both together) Std 5
File dump for CST
LeChat stress LeChatwants
LeChatdoes shift
Conversions g <----> mol <----> atoms/moleculeschart Avo
Diatomicelements NOH on 17
↑ ↓
Trends
electronegativityionization energy
atom sizeion size
mass metal non-metreactivity
vertical & horiantal arrows loose
4/23/2013 Standards: ManyObjectives: ● 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. 295 - 299 (5 pts) Std 10===========================================================
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.
File dump for CST
LeChat stress LeChatwants
LeChatdoes shift
Conversions g <----> mol <----> atoms/moleculeschart Avo
Diatomicelements NOH on 17
↑ ↓
Trends
electronegativityionization energy
atom sizeion size
mass metal non-metreactivity
vertical & horiantal arrows loose
Put papers into 4 stacks
scratch The following in order with smallest # on top:
testsscantroncharts
Spread so #'s show
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 & 64. Put your test back in with the other tests in order:
Example: 18 must be between 17 & 19
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 EDO 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. 295 - 299 (5 pts) Std 10
RESPONDERS
1 What 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
This represents the responses for the Chemistry CST. 1 = easy, 5 most difficult - 2013
Period 1 Period 2 Period 3
Period 5 Period 6
4.18 J g°CGiven: Find
g
°C
J
g
°C
J
SLOPES on heating curve
SPECIFIC HEAT
5--> 45
850
Prob. 1 (water) - find g
Prob. 2 (ethanol) - find J
Table 16-2p. 492
390
5--> 45
4.18 J
g°C
Heat of Vaporization gas <---> liq
Heat of Fusion liq <---> solid
Given: Find
mol
kJmol
kJ
Flatlands on heating curve
Heat of FUSION and Heat of VAPORIZATION
Prob 1 water - find mol
88 kJ
Prob 2 - ethanol - find kJ7.5 mol
Table 16-6p. 502
kJ mol
kJ
mol
Given Find
Page 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 )
Heat of fusionheat of vaporizationspecific heat formulas given on back
of periodic chart
electron config for all elements in one column are the samehow elements react are the same within a column
(ratios of the element to the thing it is reacting with)
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 )
NCLB Bio Practice 1(Done on Thursday)
NCLB Bio Practice 2
(Today - Fri 4/19/13)
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. 295-299 (5 pts) Std
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
1
2
3
4
5
Pract. Probs. Ch 16.3 - Thermochem. Eqns.
Heat of Vaporization/Fusion - practice problems
5.5
find
find
1.7
find
find
22.5
83.1
find
2.6
water
ammonia (NH3)
methanol
ethanol
NH3
Q# mol kJsubstance
6
7
8
9
10
Name:_______________ Date:_______ Period:__Directions:
Show calcs!Answer questions 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: http://mrwiggersci.com/chem/homework/Ch-16-3-PPs-sp-ht-vap-fusion.htm
Student solves
Given Find
Student solves
Given Find
g°C
2J