C3 Organic Chemistry

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  • Created by: KAustria
  • Created on: 09-05-14 20:03
What atom is present in all organic molecules?
Carbon atoms
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What is the name given to a series of molecules that have a general formula?
Homologous series
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Name the first 3 members of the alkanes
Methane, Ethane and Propane
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What is the functional group of Alcohols?
-O-H
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How do you form an alcohol form an alkane molecule structure?
By replacing a hydrogen atom from each alkane molecule with an -O-H
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What are the first 3 members of the alcohol series?
Methanol, Ethanol and Propanol
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What is the structural formula of propanol?
CH3CH2CH2OH
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What is the functional group of carboxylic acids?
-COOH
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Name the first 3 members of the carboxylic acid series
Methanoic Acid, Ethanoic Acid and Propanoic Acid
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What is structural formula of Propanoic acid?
CH3CH2COOH
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What is the structural formula for Ethanoic acid?
CH3COOH
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What is the structural formula for Methanoic acid?
HCOOH
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What is the functional group for Esters?
-COO-
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How do you form an Ester from an carboxylic acid structure?
By replacing the H atom in a carboxylic acid with a hydrocarbon group
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Name an ester
Ethyl Ethanoate
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What is the structural formula of Ethyl Ethanoate?
CH3COOCH2CH3
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When alcohols are mixed with water, what are the solutions produced?
Neutral solutions
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Why are alcohols useful solvents?
Most organic substances dissolve in alcohols
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In what drinks is ethanol the main alcohol in?
Wine, beer and other alcoholic drinks
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Why do many perfumes contain ethanol?
It dissolves well with water and evapourates.
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When Alcohol is burnt completely with air, what is produced?
Carbon Dioxide and Water
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If alcohol burns with air to produce CO2 and H2O, then where is alcohol used industrially?
In fuels
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Give the equation of when Ethanol reacts with Oxygen
C2H5OH + 3 O2 ----> 2 CO2 + 3 H2O
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When sodium reacts with alcohol what is produced?
Hydrogen gas
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What reaction occurs when Alcohol turn into a Caroboxylic acid?
Alcohol is oxidised
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An Alcohol drink has turned sour after it has been left out, what happened and is the the product?
The alcoholic drink has been oxidised and it is now vinegar
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Ethanol and water are both colourless liquid. Suggest one chemical test you could do to tell them apart.
Add sodium - Sodium reacts much faster in water than in alcohol.
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What are the pH values of carboxylic acids when dissolved in water?
pH of less than 7
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Why do carboxylic acids have properties similar to all other acids?
They produce H+ solutions in aqueous solutions.
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How are carboxylic acid different to other acids?
They react with alcohols in the prsence of an acid catalyst to produce esters.
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What is the equation of the reaction between Ethanol and Ethanoic Acid
Ethanol + Ethanoic Acid ---> Ethyl Ethanoate + Water
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Give the 2 main features of Esters
1. Volatile compounds 2. Have distinctive smells
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Why are carboxylic acids considered 'weak acids'?
They do not ionise completely in an aqueous solution
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Define a strong acid
An acid which ionises completely in an aqueous solution.
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Due tot he fact carboxylic acids are 'weak acids', what are they like in comparison to strong acids?
They have higher pH and react more slowly than stronger acids.
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Other cards in this set

Card 2

Front

What is the name given to a series of molecules that have a general formula?

Back

Homologous series

Card 3

Front

Name the first 3 members of the alkanes

Back

Preview of the front of card 3

Card 4

Front

What is the functional group of Alcohols?

Back

Preview of the front of card 4

Card 5

Front

How do you form an alcohol form an alkane molecule structure?

Back

Preview of the front of card 5
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