Survey of Organic Chemistry Test #1 Review

FUNK-tional Groups

100

What does the functional group "alcohol" look like?

R-OH

200

What is the difference between a Thiol and Sulfide group?

R-SH = thiol

R-S-R = Sulfide

300

What is the difference between an amine and an amide?

Amides contain a C=O group next to the NR₂ group

400

Name all of the halides

Fluorine, Chlorine, Bromine, Iodine

500

Name all the functional groups that contain a carbonyl group (there are 7)

Aldehyde, ketone, carboxylic acid, acid chloride, acidic anhydride, amide, ester

Acids and Bases

100

Define Bronsted-Lorwy Acids and Bases

Acid - donates H+

Base - accepts H+

200

T/F: Lewis Acids and Bases are also Bronsted Acids and Bases

False

300

What are the strong acids?

HCl, HBr, HI, HNO₃, H₂SO₄

400

Equilibrium arrows favor...

weaker acids/bases

500

NH₃ + NaF --> products

HF + NaNH₂

Alkanes

100

What is the molecular formula for alkanes?

C_nH_2n+2

200

What is the simplest alkane?

Methane

300

An alkane with 6 carbon atoms has how many hydrogens?

14

400

What are the bond angles of an alkane molecule?

109.5^o

500

Draw 2,2-diethyl-1,4,6-trimethyl cyclooctane

(see board)

Lewis Structures

100

What bonds give the 180^o shape?

Triple bonds

200

Draw the best structure for BH₂^–

(see board)

300

What is the bond angle of a trigonal pyramidal molecule?

109.5^o

400

How many valence electrons total are there in SO₄^2-?

32

500

How many resonance structures are there for SO₄^2-?

6

VSEPR Models

100

What is VSEPR used for?

Used to predict the geometry of molecules

200

What will be the shape of a molecule consisting of a central atom surrounded by two bonding pair electrons and two electron lone pairs?

Bent

300

The bond angle for trigonal planar is...?

120^o

400

Which shapes are altered by unshared pairs of electrons?

Bent and Trigonal Pyramidal

500

What is the molecular shape of carbon dioxide?

Linear