Topic 6 Organic Chemistry 1

Question 1

What is the empirical formula?

Answer 1

Simplest whole number ratio

Question 2

What is the molecular formula?

Answer 2

The actual number of atoms in a molecule

Question 3

What is the structural formula?

Answer 3

Minimal detail of how the atoms are arranged in space
e.g. propane = CH3CH2CH3

Question 4

What is the displayed formula?

Answer 4

Shows all the covalent bonds between every atom

Question 5

What is the skeletal formula?

Answer 5

Carbon skeleton of a molecule where no hydrogen atoms are included
(Carbon atoms are represented by a dot and you don’t show hydrogen atoms)

Question 6

What is the corresponding name beginning of each number?

Answer 6

One - meth
two - eth
three - prop
four - but
five - pent
six - hex
seven - hept
eight - oct
nine - non
ten - dec

Question 7

What does the ending of an organic compound show?

Answer 7

The homologous series it is apart of

Question 8

What are homologous series?

Answer 8

Families of organic compounds with the same functional group and same general formula

Question 9

Do homologous series have the same chemical properties?

Answer 9

Yes

Question 10

What does each member in a homologous series differ by?

Answer 10

CH2

Question 11

What is the trend in physical properties of a homologous series?

Answer 11

There is a gradual trend - they have similar physical properties