Exam 3: Structure and Stereochemistry of Alkanes

Triacontane is an unbranched alkane that contains 30 carbon atoms in each molecule. How many hydrogen atoms are present in each molecule of triacontane?

Draw the chair conformer of cyclohexane. Label the axial hydrogens (H_a) and the equatorial hydrogens (H_e).

Draw an acceptable structure for 6-ethyl-2,6,7-trimethyl-5-propylnonane.

Identify the correct IUPAC name for each compound shown below.

Given the following heats of combustion per CH₂ group within the structure, which cyclic alkane has essentially no angle strain? (Ref: long-chain Alkane = 659 kJ/mol)

Predict the molecular formula of 4-ethyl-5,5-dimethyldodecane.

Provide an acceptable name for the alkane shown below.

Name the haloalkane shown.

Draw the most stable conformation of cis-1-ethyl-4-isopropylcyclohexane.

Which of the following describes the compound below?

In the lowest energy chair conformation of cis-1,3-dimethylcyclohexane, how many axial positions are occupied by hydrogen atoms?

How many carbons do the primary alkane constituents of gasoline contain?

In a Newman projection, siting down the C3-C4 bond, draw the structure below in its most stable conformation.

Provide the name of the compound below.

Draw the most stable conformation of cis-1,2-dimethylcyclohexane.

Provide an acceptable name for the alkane shown below.

From the perspective of viewing down the C2-C3 bond, draw the Newman projection of the least stable conformation of 2,3-dimethylbutane.

Provide an acceptable name for the alkane shown below.

In the lowest energy conformation of the compound below, how many alkyl substituents are equatorial?

Which of the following is a bridged bicyclic alkane?