Organic chem intro

Question 1

What is molecular formula

Answer 1

The actual number of atoms in a molecule or element

Question 2

What is emperical formula

Answer 2

The simplest whole number ratio of atoms in a compound

Question 3

What is structural formula

Answer 3

The arrangement of atoms in a molecule without showing all the bonds

Question 4

What is a homologous series

Answer 4

Group of compounds with the same functional group but differ by CH2

Question 5

What are the first 6 carbons stem names

Answer 5

Meth
Eth
Prop
But
Pent
Hex

Question 6

Steps of IUPAC

Answer 6

1. Find the longest continuous chains of carbons
2. Number the carbon chain so that the functional group is on the lowest possible carbon
3. Whatever the carbon number the group is attached to and place the number before the suffix
4. Write prefixes as ant other side chains in alphabetical order

Question 7

What are structural isomers

Answer 7

Same molecular formula but diffrent structural formula
Three types - Chain positional and functional

Question 8

What is a chain isomer

Answer 8

Same molecular formula but different arrangements of carbon skeleton

Question 9

Positional isomer

Answer 9

Same molecular formula but different position of the functional group

Question 10

Functional group isomer

Answer 10

Same molecular formula but different functional group

Question 11

What are stereoisomers

Answer 11

Same structural formula but different arrangements of atoms in space

Question 12

Why does stereoisomerism occur

Answer 12

Atoms can’t rotate around C-C double bond and there is restricted rotation.

Question 13

What is E isomerism

Answer 13

Same groups on opposite sides

Question 14

What is Z isomerism

Answer 14

Same groups on the same side