Chapter 1

Question 1

What is the chemical formula for Ethane?

Answer 1

CH3CH3

Question 2

What is the chemical formula and bond representation formula for Ethylene?

Answer 2

C2H4

CH2=CH2

Question 3

How is hybridization determined (i.e. how do you know if there is sp, sp^2, or sp^3 hybridization)?

Answer 3

You simply count the regions of high electron density. A lone pair, a single bond, a double bond, and a triple bond, all count as ONE region of high electron density. REMEMBER that resonance alters this rule. Draw the hybrid before determining hybridization

Question 4

The formation of a group of sp2 hybrid orbitals leaves ________ unhybridized p orbital(s).

Answer 4

ONE

Question 5

When drawing condensed organic structures multiple bond lines are usually __________, while single bond lines are usually ___________.

Answer 5

Included, omitted

Question 6

The hybridization of one s and one p orbital will result in the formation of two sp hybrid orbitals. This will leave _______ unhybridized p orbital(s) which are at right angles to the hybrid orbital.

Answer 6

TWO

Question 7

How do you calculate Formal Charge?

Answer 7

valence electrons - # electrons atom “owns” (# of bonds + # of non-bonding electrons)