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#2
(Original post by asdfghjkl12)
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#3
i) should be fairly straightforward
ii) D because secondary alcohols oxidise to ketone.
iii) solubility depends on the polarity of the solute and the solvent. Remember that 'like dissolves in like': polar molecules are soluble in polar solvents, and non-polar molecules are soluble in non-polar solvents. Water is polar, but hydrocarbons are non-polar, but they all have some solubility in water. This is because the shorter the chain is, i.e. the less non-polar units in the molecules, the more soluble the hydrocarbon will be. Ethanol has less carbons than the molecules in the question, so it is more soluble.
iv) D are chiral because they both have a carbon that is bonded to 4 different groups.
ii) D because secondary alcohols oxidise to ketone.
iii) solubility depends on the polarity of the solute and the solvent. Remember that 'like dissolves in like': polar molecules are soluble in polar solvents, and non-polar molecules are soluble in non-polar solvents. Water is polar, but hydrocarbons are non-polar, but they all have some solubility in water. This is because the shorter the chain is, i.e. the less non-polar units in the molecules, the more soluble the hydrocarbon will be. Ethanol has less carbons than the molecules in the question, so it is more soluble.
iv) D are chiral because they both have a carbon that is bonded to 4 different groups.
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#4
(Original post by Es0phagus)
i) should be fairly straightforward
ii) C because secondary alcohols oxidise to ketone.
iii) solubility depends on the polarity of the solute and the solvent. Remember that 'like dissolves in like': polar molecules are soluble in polar solvents, and non-polar molecules are soluble in non-polar solvents. Water is polar, but hydrocarbons are non-polar, but they all have some solubility in water. This is because the shorter the chain is, i.e. the less non-polar units in the molecules, the more soluble the hydrocarbon will be. Ethanol has less carbons than the molecules in the question, so it is more soluble.
iv) A and D are chiral because they both have a carbon that is bonded to 4 different groups.
i) should be fairly straightforward
ii) C because secondary alcohols oxidise to ketone.
iii) solubility depends on the polarity of the solute and the solvent. Remember that 'like dissolves in like': polar molecules are soluble in polar solvents, and non-polar molecules are soluble in non-polar solvents. Water is polar, but hydrocarbons are non-polar, but they all have some solubility in water. This is because the shorter the chain is, i.e. the less non-polar units in the molecules, the more soluble the hydrocarbon will be. Ethanol has less carbons than the molecules in the question, so it is more soluble.
iv) A and D are chiral because they both have a carbon that is bonded to 4 different groups.
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#5
(Original post by Saywhatyoumean)
Is the chiral carbon in A the one in the middle of the chain? I really can't see why it's chiral because I thought it was attached to two -CH3 groups?
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Is the chiral carbon in A the one in the middle of the chain? I really can't see why it's chiral because I thought it was attached to two -CH3 groups?
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#7
(Original post by Es0phagus)
i) should be fairly straightforward
ii) C because secondary alcohols oxidise to ketone.
iii) solubility depends on the polarity of the solute and the solvent. Remember that 'like dissolves in like': polar molecules are soluble in polar solvents, and non-polar molecules are soluble in non-polar solvents. Water is polar, but hydrocarbons are non-polar, but they all have some solubility in water. This is because the shorter the chain is, i.e. the less non-polar units in the molecules, the more soluble the hydrocarbon will be. Ethanol has less carbons than the molecules in the question, so it is more soluble.
iv) A and D are chiral because they both have a carbon that is bonded to 4 different groups.
i) should be fairly straightforward
ii) C because secondary alcohols oxidise to ketone.
iii) solubility depends on the polarity of the solute and the solvent. Remember that 'like dissolves in like': polar molecules are soluble in polar solvents, and non-polar molecules are soluble in non-polar solvents. Water is polar, but hydrocarbons are non-polar, but they all have some solubility in water. This is because the shorter the chain is, i.e. the less non-polar units in the molecules, the more soluble the hydrocarbon will be. Ethanol has less carbons than the molecules in the question, so it is more soluble.
iv) A and D are chiral because they both have a carbon that is bonded to 4 different groups.
It can't be C because the alcohol will oxidise into an aldehyde first since the alcohol group is attached to the end carbon.
It would be D as the alcohol group is on the second carbon.
Edit: didn't see your response above.
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#8
(Original post by Es0phagus)
You're right. I thought it was bonded to an ethane, but it's two methanes.
You're right. I thought it was bonded to an ethane, but it's two methanes.
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#9
(Original post by Saywhatyoumean)
ahh okay, but then what is part IV asking for? Is it asking about enantiomers maybe?
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ahh okay, but then what is part IV asking for? Is it asking about enantiomers maybe?
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