Molecular Models
Legend to color
representation of
the elements
Carbon =
BLACK
Nitrogen = BLUE
Hydrogen =
YELLOW
Oxygen = RED
Kristi
Presented by Kami Dykes
Lab # 2
What are these molecular structures name and
give the formula for them.
1. Hydrogen H2
2. Oxygen O2
What are these molecular structures name and give the formula for them.
O
H
3. Water H20
H
4. Carbon Dioxide
CO2
What are these molecular structures name and give the formula for them.
5.
Methane CH4
6.
Methanol CH3OH
Bonus: Why did the number after CH change to 3
instead of 4? And what is an OH?
Answer: The number is added with the OH. OH
is a hydroxyl.
What are these molecular structures name and give the formula for them.
7. Ethane C2H6
8. Ethanol C2H5OH
What is the molecular structure’s name and give the formula for it.
9. Propane C3H8
If you added a hydroxyl what
would the new molecular
formula be as well as the
name of it?
10. C3H7OH
Propanol
What are these molecular structures name and give the formula for
them.
11. Butane C4H10
12. Glycerol C3H5(OH)3
What is wrong with this molecular structure of fatty acid? What is
the correct formula?
13. you can add (moving left to right) 2 hydrogen atoms to the 2nd carbon
and 1 hydrogen to the last (far right) carbon to fill in all their valences. This
would give you C6H13COOH for the correct formula.
C6H9COOH
13. What is this structure?
Neutral fat
14. Is it unsaturated or
saturated? Why?
It is unsaturated
because of the
double bonds
between the carbons
and the fatty acid
chains.
15. What did you add to
get this structure? What
came off of this structure
when they combined?
Fatty acid (3 times) + glycerol
When they combined H2O was
formed three times.
What is the name of
this molecular
structure? What is
the formula for it?
Gylcine NH2CH2COOH
What is the NH2?
amine
What is the COOH?
carboxyl
What is the molecular structure’s
name and give the formula for it.
Fructose C6H12O6
What is the molecular structure’s name and
give the formula for it.
Glucose C6H12O6
What is the difference between glucose
and fructose?
Glucose is shaped as a
hexagon and fructose is
shaped as a pentagon.
How do you form sucrose?
Combine glucose and
fructose but one water
molecule is lost.