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
File dump for CST
LeChat
Conversions
Diatomic
elements
stress
↑
LeChat
wants
↓
LeChat
does
shift
chart
Avo
g <----> mol <----> atoms/molecules
NOH on 17
Trends
vertica
l&
horian
tal
arrow
s
loose
electronegativity
ionization energy
atom size
ion size
mass
metal
non-met
reactivity
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
===========================================================
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
Conversions
Diatomic
elements
stress
↑
LeChat
wants
↓
LeChat
does
shift
chart
Avo
g <----> mol <----> atoms/molecules
NOH on 17
Trends
vertica
l&
horian
tal
arrow
s
loose
electronegativity
ionization energy
atom size
ion size
mass
metal
non-met
reactivity
Put papers into 4 stacks
scratch
The following in order with
smallest # on top:
tests
scantron
charts
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:
4.
5 must be between 4 & 6
Put your test back in with the other tests in order:
Example:
18 must be between 17 & 19
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
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 5
Period 6
Period 3
SLOPES on heating curve
SPECIFIC HEAT
Find
Given:
390
5--> 45
4.18 J
g°C
g
g
°C
°C
J
J
4.18 J
g°C
Prob. 1 (water)
- find g
850
Prob. 2
(ethanol) - find
5--> 45
J
Table 16-2
p. 492
Heat of Vaporization gas <---> liq
Heat of Fusion
liq <---> solid
Flatlands on heating curve
Heat of FUSION
Heat of VAPORIZATION
Find
Given:
88 kJ
and
mol
mol
kJ
kJ
kJ
mol
mol
kJ
Prob 1
water - find
mol
Prob 2 ethanol - find
7.5 mol
kJ
Table 16-6
p. 502
Page 502
Given
Find
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 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)
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 2
NCLB Bio Practice 1
(Done on Thursday)
(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
Name:_______________ Date:_______ Period:__
Direct
ions:
Pract. Probs. Ch 16.3 - Thermochem. Eqns.
Show
Specific heat - practice problems
ΔT
Q#
J
mass
1
find
2.5 kg
0°C ---> 32°C
2
39.5 J
find
100°C ---> 145°C
3
148 J
725 g
find
4
2.05 J
find
-82°C ---> -5°C
5
find
82 g
74°C ---> 30°C
Heat of Vaporization/Fusion - practice problems
Q#
6
7
8
9
10
mol
substance
kJ
5.5
find
water
find
22.5
ammonia (NH3)
find
83.1
methanol
1.7
find
ethanol
find
2.6
NH3
This page was use to make:
http://mrwiggersci.com/chem/homework/Ch-16-3-PPs-sp-ht-vap-fusion.htm
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.
Student solves
Given
Find
Student solves
Given
Find
g°C
2J