Bertybassett
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Hi, I was wondering if anyone could help on how to answer 5bii on this. Also, how do you write the structural formulas of esters? Thanks http://pmt.physicsandmathstutor.com/...s%201%20QP.pdf
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alstudent_2019
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Not sure about the first one so sorry if I'm wrong, but I think it wouldn't change anything as you're only changing the total volume of the mixture, thus not changing the actual molar quantities of anything.

And ester's structure formula is derived form their name.

If its ethanoyl propanoate, the first alkyl bit is the alcohol, and the second is the carboxylic acid both used to make the ester.
So ethanoyl propanoate would be CH3CH2COOH (propanoic acid) + CH3CH2OH (ethanol) so if u mix them together, removing H2O, u get CH3CH2COOCH2CH3.
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Bertybassett
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thank you, would you get the mark for the structural formula if you it the other way round e.g. h3ch2cooch2ch3 ? or is this wrong?
(Original post by alstudent_2019)
Not sure about the first one so sorry if I'm wrong, but I think it wouldn't change anything as you're only changing the total volume of the mixture, thus not changing the actual molar quantities of anything.

And ester's structure formula is derived form their name.

If its ethanoyl propanoate, the first alkyl bit is the alcohol, and the second is the carboxylic acid both used to make the ester.
So ethanoyl propanoate would be CH3CH2COOH (propanoic acid) + CH3CH2OH (ethanol) so if u mix them together, removing H2O, u get CH3CH2COOCH2CH3.
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alstudent_2019
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(Original post by Bertybassett)
thank you, would you get the mark for the structural formula if you it the other way round e.g. h3ch2cooch2ch3 ? or is this wrong?
no thats still right
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