3.1 Introduction to Organic Chemistry Flashcards
What does prefix meth- mean?
1 carbons
What does prefix eth- mean?
2 carbons
What does prefix prop- mean?
3 carbons
What does prefix but- mean?
4 carbons
What does prefix pent- mean?
5 carbons
What does prefix hex- mean?
6 carbons
What does prefix hept- mean?
7 carbons
What does prefix oct- mean?
8 carbons
What does suffix -ane mean?
only single bonds
What does suffix -ene mean?
contains at least one double bond
What does suffix -yne mean?
contains at least one triple bond
What are isomers?
Isomers have the same molecular formula but different structural formula
What are the steps for naming?
- identify no. of carbons in main chains
- Nature of bonding in main chain
- Position of special bonds - functional groups and double/triple bonds
- No. of branching chains (name and position)
What is the general formula for Alkanes?
Cn H(2n+2) [excluding cyclics]
What range of carbon chain lengths are gases at RT?
1-3 carbons in main chain (not sure if this includes branching)
What range of carbon chain lengths are liquid at RT?
4- 8/9 carbons (not sure if this includes branching)
What range of carbon chain lengths are solid at RT?
8/9 - infinite carbons (not sure if this includes branching)
When will BP increase?
And why?
BP increases as chain length increases.
Secondary bonding of non-polar hydrocarbons is dispersion forces and therefore strength of secondary bonding increase - increasing BP.
Functional groups also impact.
What impacts melting point?
The density of the compound - hence the geometric design of the compound/structure
Order from highest to lowest MP (of similar molar mass):
- aldehyde
- ketone
- alcohol
- Alcohol
- Aldehyde
- Ketone
Order from most soluble to least soluble (of similar molar mass):
- Aldehyde
- Alcohol
- Ketone
- Alcohol
- Aldehyde
- Ketone