Ozone story exercise

Fill it in using textbook, revision ect

HideShow resource information
Preview of Ozone story exercise

First 96 words of the document:

Lesson 1: OZ1: What's in the air?
ppm =
Calculating percentage composition (worked examples)
Carbon Dioxide Neon Dinitrogen oxide
Calculating concentration in parts per million (worked examples)
Nitrogen Oxygen Argon
Lesson 2: OZ2: Screening the Sun
Two Health effects of electromagnetic radiation
1)
2)
Sunscreen ­ how does it work? Include a sketch of oxybenzone and cinoxate in your answer
Why is the atmosphere such a good sunscreen?
Light and Electrons
The behaviour of light can be described using two different models
(i)
(ii)

Other pages in this set

Page 2

Preview of page 2

Here's a taster:

Speed of light, frequency and wavelength are related by the following formula
The two theories of light can also be explained by the following relationship:
What happens when radiation interacts with matter?
When a molecule absorbs electromagnetic radiation ­ there are 4 possible outcomes
(i)
(ii)
(iii)
(iv) Electronic transition between energy levels also known as
Change occurring Size of energy change / J Type of radiation absorbed
If quantised why the range?
What kind of electronic changes occur when molecules absorb UV radiation?
What…read more

Page 3

Preview of page 3

Here's a taster:

Lesson 4: OZ3 How is ozone formed in the atmosphere?
There are two different types of bond fission (the breaking of a bond)
Type 1: Heterolytic Fission
Description:
Products:
Common for:
Example:
Type 2: Homolytic Fission
Description:
Products:
Common for:
Example:
Ozone formation in the troposphere
Task) Describe what is happening in each of the following reactions to explain how ozone acts as a
sunscreen
O
2 + hv O + O
O2 + O O3
O + O O2
O + O3
2O2
O3…read more

Page 4

Preview of page 4

Page 5

Preview of page 5

Here's a taster:

Method 3: pH measurement
Suggest the typical apparatus used to follow changes in pH
Method 4: Colorimetry
Method 5: Chemical Analysis
Factors affecting the rate of reaction
Factor Why does the rate of reaction increase ­ relate to collision theory (collisions
per second)…read more

Page 6

Preview of page 6

Page 7

Preview of page 7

Here's a taster:

Homogeneous catalysis
How do chlorine and bromine atoms delete ozone?
How do hydroxyl and nitrogen monoxide molecules delete ozone?
Lesson 11 ­ OZ6 The CFC Story
Uses of CFCs
Haloalkanes
Draw a haloalakane and label the bond polarities using dipoles
Full Structural Skeletal Formula Name Why is this name
Formula wrong?
chloropropane…read more

Page 8

Preview of page 8

Here's a taster:

Electronegativity
Definition:
State two trends in electronegativity
1.
2.
Boiling points of haloalkanes
Boiling points increases because of two factors
1.
2.
Dipoles
There are three different types of dipoles
1.
2.
3.…read more

Page 9

Preview of page 9

Here's a taster:

Instantaneous Dipoles
Induced Dipoles
Intermolecular bonds
There are three different types of intermolecular bonds
1.
2.
3.…read more

Page 10

Preview of page 10

Here's a taster:

Melting and boiling points of the halogens
Halogen Melting Point / K Boiling Point / K Appearance at RT
The pattern in melting point and boiling point can be explained by
Damage to the ozone layer
Give two examples of a molecule which acts as a chlorine reservoir
Lesson 13 OZ7 ­ The Ozone Hole
Why does the ozone hole develop over the poles?
Hydrogen Bonding
Three features are needed for hydrogen bonding
1.…read more

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all resources »