AQA A Level Chemistry
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| What is a homologous series? | show 🗑
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| What is a functional group? | show 🗑
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| show | A hydrocarbon with only single bonds between carbon atoms.
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| show | A hydrocarbon with at least one double bond between carbon atoms.
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| What is the functional group of a halogenoalkane? | show 🗑
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| What is the functional group of an alcohol? | show 🗑
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| What is the functional group of an aldehyde? | show 🗑
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| What is the functional group of a ketone? | show 🗑
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| What is the functional group of a carboxylic acid? | show 🗑
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| show | The simplest whole number ratio of atoms of each element in a compound
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| What is a molecular formula? | show 🗑
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| What is a general formula? | show 🗑
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| show | A formula showing the arrangement of atoms in a substance without showing the bonds. E.g. CH₃CH₂CH₃
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| show | A formula showing the arrangement of atoms in a substance and all the bonds.
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| What is a skeletal formula? | show 🗑
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| How do you name a straight chain alkane or alkene? | show 🗑
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| How do you name a straight chain halogenoalkane? | show 🗑
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| show | Count the number of carbons in the longest straight chain and assign the prefix. Choose the suffix - ane or ene. Indicate the branches using methyl, ethyl etc. and its position (by putting a number before the alkyl term). More than one branch should be li
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| What prefixes are used to represent 1,2,3,4,5 and 6 carbons in the longest straight chain? | show 🗑
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| Name a given alkane, alkene or halogenoalkane. | show 🗑
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| show | Find the longest chain of carbon atoms containing the functional group, number the chain starting from the end closest to the functional group, name it as if it were an alkane or alkene, remove the 'e' and add the relevant suffix (e.g. alcohol - ol). Wher
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| What suffixes are used for an alcohol, aldehyde, ketone or carboxylic acid? | show 🗑
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| Name a given aldehyde or ketone. | show 🗑
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| What is isomerism? | show 🗑
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| show | Where isomers have the same molecular formula but a different structure
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| show | Chain, position and functional
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| What is chain structural isomerism? | show 🗑
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| What is positional structural isomerism? | show 🗑
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| What is functional group structural isomerism? | show 🗑
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| show | Where isomers have the same structural formula but the atoms are arranged differently in space.
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| What is geometric isomerism? | show 🗑
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| How do you know if a particular alkene exhibits geometric isomerism? | show 🗑
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| How is priority assigned to groups attached to the carbons in a double bond? | show 🗑
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| show | A geometric isomer that has the two priority groups on opposite sides.
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| What is an 'Z' geometric isomer? | show 🗑
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| show | Take the left hand carbon of the double bond and use atomic numbers to select the group with the highest priority. Repeat for the right hand carbon. If the two priority groups are on the same side = Z, if they are on opposite sides = E.
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| show | The C=C must be in the centre with 2 bonds coming from each in a diagonal direction with the groups attached.
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| show | 1. Divide the mass/percentage of each element by its Ar. 2. Divide these numbers by the smallest of these numbers. 3. Multiply by any whole number to produce a whole number ratio.
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| show | 1.Wrork out the RFM of the EF. 2. Use the RFM of the EF and the Mr to work out how many times bigger the MF is than the EF. 3.Multiply the EF by this number.
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| show | 12.2% Hydrogen, C87.8/12 = 7.3 H12.2/1 = 12.2, C 7.3/7.3 = 1 H 12.2/7.3 = 1.67, C=3 H=5, C3H5
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| show | C3H5 (RFM = 41) MF = 2xEF = C6H10
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| show | 12.2% Hydrogen, C87.8/12 = 7.3 H12.2/1 = 12.2, C 7.3/7.3 = 1 H 12.2/7.3 = 1.67, C=3 H=5, C3H5 (RFM = 41) MF = 2xEF = C6H10
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