4/22/2013 standards : 5 (acid base) and biology (nclb practice) o bjectives :

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