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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 :

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slide1
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 - 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

slide3
File dump for CST

LeChat

LeChat

does

LeChat

wants

stress

shift

chart

Avo

Conversions

g <----> mol <----> atoms/molecules

Diatomic

elements

NOH on 17

Trends

atom size

ion size

mass

electronegativity

ionization energy

metal

vertical & horiantal arrows loose

non-met

reactivity

slide5
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. 295 - 299 (5 pts) Std 10

===========================================================

slide6
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.

slide7
File dump for CST

LeChat

LeChat

does

LeChat

wants

stress

shift

chart

Avo

Conversions

g <----> mol <----> atoms/molecules

Diatomic

elements

NOH on 17

Trends

atom size

ion size

mass

electronegativity

ionization energy

metal

vertical & horiantal arrows loose

non-met

reactivity

slide9
Put papers into 4 stacks

scratch

The following in order with

smallest # on top:

tests

scantron

charts

Spread so #'s show

slide10
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

slide11
RESPONDERS

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. 295 - 299 (5 pts) Std 10

slide13
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

slide14
This represents the responses

for the Chemistry CST.

1 = easy, 5 most difficult - 2013

Period 3

Period 1

Period 2

Period 6

Period 5

slide16
SLOPES on heating curve

SPECIFIC HEAT

4.18 J

g°C

Given:

Find

g

°C

J

g

°C

J

390

5--> 45

4.18 J

g°C

Table 16-2

p. 492

Prob. 1 (water) - find g

Prob. 2 (ethanol) - find J

5--> 45

850

slide17
Heat of Vaporization gas <---> liq

Heat of Fusion liq <---> solid

slide18
Flatlands on heating curve

Heat of FUSION and Heat of VAPORIZATION

kJ

mol

Find

Given:

mol

kJ

mol

kJ

88 kJ

mol

kJ

Prob 1 water - find mol

Prob 2 - ethanol - find kJ

Table 16-6

p. 502

7.5 mol

slide19
Page 502

Given

Find

slide20
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 )

slide21
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)

slide22
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 )

slide23
NCLB Bio Practice 2

NCLB Bio Practice 1

(Today - Fri 4/19/13)

(Done on Thursday)

slide24
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

slide25
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.

Pract. Probs. Ch 16.3 - Thermochem. Eqns.

Specific heat - practice problems

Q# J mass ΔT

0°C ---> 32°C

100°C ---> 145°C

find

-82°C ---> -5°C

74°C ---> 30°C

2.5 kg

find

725 g

find

82 g

find

39.5 J

148 J

2.05 J

find

1

2

3

4

5

Heat of Vaporization/Fusion - practice problems

Q# mol kJ substance

5.5

find

find

1.7

find

water

ammonia (NH3)

methanol

ethanol

NH3

find

22.5

83.1

find

2.6

6

7

8

9

10

This page was use to make:

http://mrwiggersci.com/chem/homework/Ch-16-3-PPs-sp-ht-vap-fusion.htm

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