Biostatistics

1. Propose structures of molecules that fit the following descriptions:

a. A straight-chain alkane with the formula C4H10.

b. A branched alkane with the formula C4H10.

c. A ketone with the formula C5H10O.

d. An alkane with two tertiary carbons.

e. A cycloalkane with only secondary carbons.

2. Write condensed structures for the following compounds:

f. 4-tert-Butyl-3,3,5-trimethylheptane

g. 2,4-diemethylpentane

h. 4,4-diethyl-3-methyloctane

i. 3-isopropyl-2,3,6,7-tetramethylnonane

j. 3-isobutyl-1-isopropyl-5-methylcycloheptane

k. 1,1,3-trimethylcyclopentane

3. Name the following cycloalkanes:

l. b. c.

d.

4. A student came up with the following INCORRECT names of the following compounds. Tell what is wrong with each and provide the correct names.

m. 2,2-Methylpentane

n. 1,1-diisopropylmethane

o. 1-cyclobuytyl-2-methylpropane

5. The following names are INCORRECT. Write the condensed structure that corresponds to the name given and then determine the correct name of the compound.

p. 2-ethylbutane

q. 2-isopropyl-2-methylpentane

r. 5-ethyl-1,1-methylcyclopentane

s. 3-ethyl-3,5,5-trimethylhexane

t. 1,2-diemthyl-4-ethylcyclohexane

u. 2,4-diethylpentane

v. 5,5,6,6-methyl-7,7-ethyldecane

6. Draw structures and give the IUPAC names for the nine isomers of C7H16.

7. As a clear red liquid sits at room temperature, evaporation occurs until only a red solid remains. Was the original liquid an element, compound or a mixture. Explain.

8. The active ingredient in aspirin, acetylsalicylic acid (ASA), has the formula C9H8O4 and melts at 140°C.

w. Identify the elements and how many atoms of each are present in each molecule of aspirin.

x. Is it a solid or a liquid at room temperature?

y. The structure of ASA contains an aromatic ring to which is attached a carboxylic...