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justineromaine
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#1
Hi,
Could anybody help me identify these skeletal formulae?
![Name: ORGANIC CHEMISTRY.jpg
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I'm really struggling with this
!
Thanks!
Could anybody help me identify these skeletal formulae?
I'm really struggling with this
! Thanks!
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Gerry-Atricks
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#2
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#2
Number of lines/branches equals length of carbon chain so first one has 3 of them and so is prop- , the two lines indicates a double bond so it ends in ene so this is prop-2-ene, understand?
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Alextox
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an_atheist
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#4
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#4
(Original post by justineromaine)
Hi,
Could anybody help me identify these skeletal formulae?
![Name: ORGANIC CHEMISTRY.jpg
Views: 80
Size: 4.0 KB]()
I'm really struggling with this !
Thanks!
Hi,
Could anybody help me identify these skeletal formulae?
I'm really struggling with this
! Thanks!
Are you having difficulty with the functional groups at all?
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bleak_rage
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#5
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#5
(Original post by justineromaine)
Hi,
Could anybody help me identify these skeletal formulae?
![Name: ORGANIC CHEMISTRY.jpg
Views: 80
Size: 4.0 KB]()
I'm really struggling with this !
Thanks!
Hi,
Could anybody help me identify these skeletal formulae?
I'm really struggling with this
! Thanks!
You can use the following link to learn about the order of functional groups as in, which one should be given the highest priority while naming them.
http://www.masterorganicchemistry.co...-nomenclature/
Hopefully this helped!
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TheFailedMedic
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#6
Using IUPAC naming you get (from left to right):
1. but-2-ene (Alkene - C=C)
2. butan-2-one (Ketone - RCOR)
3. butane (Alkane - C-C)
4. butanal (Aldehyde - RCHO)
5. butanoic acid (Carboxylic acid - COOH)
1. but-2-ene (Alkene - C=C)
2. butan-2-one (Ketone - RCOR)
3. butane (Alkane - C-C)
4. butanal (Aldehyde - RCHO)
5. butanoic acid (Carboxylic acid - COOH)
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Gerry-Atricks
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#7
(Original post by Alextox)
From left to right
(E)-but-2-ene
butan-2-one
butane
butyraldehyde
butyric acid
From left to right
(E)-but-2-ene
butan-2-one
butane
butyraldehyde
butyric acid
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Alextox
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#8
(Original post by glad-he-ate-her)
The last two are wrong ( or at least uncommon, should be butanal and butanoic acid) and we try to help people understand in study help not give them the answers.
The last two are wrong ( or at least uncommon, should be butanal and butanoic acid) and we try to help people understand in study help not give them the answers.
Perhaps I should have given to the user a small introduction to organic chemistry nomenclature rather than the answers. Perhaps, the user can name others structures likewise
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Gerry-Atricks
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#9
(Original post by Alextox)
The last two are right and those names are not uncommon. Take as example the ethanoic acid, it's more common to say acetic acid. This also happens with formaldehyde (it's weird to call it methanal). However, all those nouns are accepted by the IUPAC.
Perhaps I should have given to the user a small introduction to organic chemistry nomenclature rather than the answers. Perhaps, the user can name others structures likewise
The last two are right and those names are not uncommon. Take as example the ethanoic acid, it's more common to say acetic acid. This also happens with formaldehyde (it's weird to call it methanal). However, all those nouns are accepted by the IUPAC.
Perhaps I should have given to the user a small introduction to organic chemistry nomenclature rather than the answers. Perhaps, the user can name others structures likewise
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Alextox
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#10
(Original post by glad-he-ate-her)
Oh thanks for that then but all the mark schemes ive looked at in A level chemistry call aldehydes by the -al suffix and carboxylic acids by the oic acid suffix so they may lose a mark by not using the common answers, though yours are technically right, its better safe than sorry with these specific mark schemes
Oh thanks for that then but all the mark schemes ive looked at in A level chemistry call aldehydes by the -al suffix and carboxylic acids by the oic acid suffix so they may lose a mark by not using the common answers, though yours are technically right, its better safe than sorry with these specific mark schemes
I totally agree with you. Therefore answer like they taught you in order to avoid any mishap
Good luck!!!
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Gerry-Atricks
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#11
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#11
(Original post by Alextox)
You're welcome
I totally agree with you. Therefore answer like they taught you in order to avoid any mishap
Good luck!!!
You're welcome
I totally agree with you. Therefore answer like they taught you in order to avoid any mishap
Good luck!!!
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Bulletzone
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#12
(Original post by TheFailedMedic)
Using IUPAC naming you get (from left to right):
1. but-2-ene (Alkene - C=C)
2. butan-2-one (Ketone - RCOR)
3. butane (Alkane - C-C)
4. butanal (Aldehyde - RCHO)
5. butanoic acid (Carboxylic acid - COOH)
Using IUPAC naming you get (from left to right):
1. but-2-ene (Alkene - C=C)
2. butan-2-one (Ketone - RCOR)
3. butane (Alkane - C-C)
4. butanal (Aldehyde - RCHO)
5. butanoic acid (Carboxylic acid - COOH)
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