Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
44 Cards in this Set
- Front
- Back
|
What is the functional group of an alcohol |
hydroxyl group (-OH) |
|
|
With alcohols names of alkanes are used but change the ending to ... |
"ol" |
|
|
The general formula for a alcohol is... |
Cn H2n+1 OH |
|
|
H | H-C-OH Name the alcohol and give the | molecular formula H |
methanol CH3OH |
|
|
The boiling point _______ as the molecular size __________ |
increases & increases |
|
|
All simple alcohols are ______ at room temperature |
liquid |
|
|
All alcohols have a pH of __ |
7 |
|
|
Alcohols are _____ in water |
soluable |
|
|
All alcohols are very ____ |
flamable |
|
|
Smaller alcohol molecules burn very cleanly for example methanol and ethanol, why do you thin this is? |
Because there is less carbon content in the molecules |
|
|
______ and _______ are used as fuels |
methanol and ethanol |
|
|
give an example of when methanol is used as a fuel |
methanol indie car racing |
|
|
____ has been used in alcoholic drinks for thousands of years |
ethanol |
|
|
ethanol is widely used as a solvent for ... |
perfumes, deodorants, dyes, inks |
|
|
Solvents are _____ |
voletile |
|
|
If polar, what disolves |
polar things |
|
|
if non-polar, what dissolves it? |
non-polar things |
|
|
prpan-2-ol and ethanol are widely used as ____ |
disinfectants |
|
|
Carboxylic acids are found in many flavours (_____) and preservatives (_____) |
sour, picles |
|
|
The most common carboxylic acid is _______ |
ethanoic acid |
|
|
What is the functional group for the carboxylic acids? |
carboxyl -C(=O)(-OH) |
|
|
How do you name a carboxylic acid? |
change the ending to -oic acid |
|
|
The carboxyl group must be on the ___ because it only has one spare bond |
end |
|
|
What is the general formula for a carboxylic acid |
Cn H2n+1 COOH |
|
|
Carobcylic acids boiling point _________ as the molecule size _____ |
increases |
|
|
carboxylic acids are _____ at room temperatre |
liquid |
|
|
The carboxylic group makes the molecule _______, the hydrocarbon is ____ in water |
soluble, insoluable |
|
|
Carboxylic acids have a pH of _____ |
<7 |
|
|
carboxylic acids are _______ in water |
soluble |
|
|
Ethanoic acid can be used to remove ____ from pots and kettles |
limescale |
|
|
Ethanoic is used as a ______ and a _____ |
flavoring and preservitive |
|
|
Ethanoic acid can be used for |
vinegar PVA glue plastic film |
|
|
Carboxylic acid + base ----> _______ + ________ |
salt + water |
|
|
Carboxylic acid + base ---->salt + water is a ________ reaction |
neutralisation |
|
|
Esters have a strong often ____ smell |
pleasant |
|
|
Esters are found widely in natural and artificial ______ and also as ______ (i.e nail varnish) |
fruit flavors solvents |
|
|
Esters have important characteristics they ________ ___________ ________ _________ |
are volatile interact the receptors in the nose causing the smell last long insoluble in water |
|
|
Esters have ______ melting and boiling points |
low |
|
|
Esters are formed by combining an _______ and a ________ |
alcohol and a carboxylic acid |
|
|
The reaction equation for an ester is alcohol + carboxylic acid -------> ______ + _______ |
ester + water |
|
|
Ester formation is an example of a _______ reaction |
condensation |
|
|
A condensation reaction is one where two _____ molecules join to form one _______ molecule and a molecule of _____ |
small, larger, water |
|
|
The OH from the carboxylic acid and the H from the hydroxyl group on the alcohol break off to create ____ |
H2O |
|
|
Esters are also _____ |
volatile or less dense than water |
