Organic Compounds

Question 1

what is the general formula?

Answer 1

an algebraic formula that can describe any member of a family of compounds e.g. CnH2n (for alkenes)

Question 2

what is the empirical formula?

Answer 2

the simplest whole number ratio of atoms of each element in a compound e.g. CH2

Question 3

what is the molecular formula?

Answer 3

the actual number of atoms of each element in a molecule e.g. C2H4

Question 4

what is the displayed formula?

Answer 4

shows how all the atoms are arranged and the bonds between them

Question 5

what is the structural formula?

Answer 5

shows the arrangement of atoms carbon by carbon, with the attached hydrogens and functional groups

Question 6

what is a homologous series?

Answer 6

a group of compounds that can all be represented by the same general formula

Question 7

what do homologous series all have in common?

Answer 7

• similar chemical reactions
• trends in physical properties
• the same general formula

Question 8

what are alkenes functional group?

Answer 8

C=C

Question 9

what are alcohols functional group?

Answer 9

O-H

Question 10

what are carboxylic acids functional group?

Answer 10

O=C-OH

Question 11

what are esters functional group?

Answer 11

O=C-O