Organic Structures and Acid/Base
Bond – line structures (KAO)

Write the Lewis Structure and partially condensed and condensed structure
for C3H8O

Write the Lewis Structure and partially condensed and condensed structure
for (CH3)3COCH3

Write the bond line structure for ethanol

Write the bond line structure and Lewis structure for propane

Write the bond line structure and Lewis structure for chlorocyclohexane

Write the bond line structure and Lewis structure for propene

Write the bond line structure and Lewis structure for 1- butyne
3-D bond-line structures


What is represented by each of the following in a 3-D bond-line structure?

Line

Wedge

Dash
Draw the structure for ethane C3H8 in 3D bond line structure
Structural (constitutional) isomers

Draw the three structural isomers for C5H12

Draw the three structural isomers for C3H8O
Functional groups I

Define functional group

Write the general structures for the three functional groups containing
multiple carbon bonds and a specific example of each type.

What does R stand for?

Write the structures for the functional groups that have carbon bonded to an
electronegative element.

Write all the structures containing a carbonyl group.
Functional groups II

Draw the structure of aspirin (actetylsalicylic acid) and label all the
functional groups.
Formal charge I

What is the formula for formal charge?

Write the structure for methane and calculate the formal charge.

Write the structure for CH3 (a carbocation) and calculate the formal charge
and determine the hybridization.

Write the structure for CH3 with a negative formal charge (a carbanion) and
give the hybridization and shape.

Write the structures and calculate the formal charges for each of the
following
o NH2
o NH3
o NH4
formal charge II

Draw structures in which oxygen has a formal charge or -1, 0, -1

Draw a dot diagram of chlorine with a -1 formal charge.

Draw the structure for nitromethane and calculate all the formal charges.
Resonance Structures I

Explain by means of curved arrows how resonance structures form from the
molecule below.

What are delocalized electrons?

What is the relationship between delocalized electrons and stability?

List three ways to form resonance structures by moving electrons

Show how resonance structures are show for the structure below. (I have
shown the structure in two forms)
Show by means of curved arrows how two additional resonance structures are
formed from

Pyridine

C2H2
Electronegativity

electronegativity (KAO)

What is the definition of electronegativity?

Write out the partial Lewis structure for a carbon – oxygen bond and show
the two ways to indicate polarity.

Define a nonpolar covalent bond.

Give an example of when a difference in electronegativity between two atoms
is still considered nonpolar.

In terms of electronegativity, how does an ionic bond differ from a covalent
bond? Give and example.
electronegativity and intermolecular forces (KAO)

What is an intermolecular force?

Show the dipole – dipole interaction between two acetone molecules?

What is a simple measure of the strength of intermolecular forces?

Illustrate how a hydrogen bond forms between two water molecules.

What conditions must be met for hydrogen bonding to occur?

Define London Dispersion and give an example of a molecule exhibiting this
type of intermolecular force?

What types of molecules have dispersion forces?