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VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: ulbasour on June 10, 2011, 05:02:36 pm

Title: Carboxylic Acid Queries!!
Post by: ulbasour on June 10, 2011, 05:02:36 pm

If anyone can help:

Does a carboxylic acid have a higher or lower BP than an alcohol?

Whats  the order of BP from lowest to highest between an alkene, alkane, alcohol, carboxyl and ester, with the same number of C atoms?

And would you use Gas Chromatography or HPLC for analysing a Carboxylic acid?

Cheers x

Title: Re: Carboxylic Acid Queries!!
Post by: taqi on June 10, 2011, 05:14:39 pm

Acids have a higher boiling point than alcohols, more intermolecular attraction i think.
the order probably is (i think) alkene;alkane;ester;alcohol;carboxyl
HPLC for carboxylic acid, as its more often in liquid form than the volatile gas.

Title: Re: Carboxylic Acid Queries!!
Post by: thatricksta on June 10, 2011, 05:40:24 pm

Quote from: taqi on June 10, 2011, 05:14:39 pm

Acids have a higher boiling point than alcohols, more intermolecular attraction i think.
the order probably is (i think) alkene;alkane;ester;alcohol;carboxyl
HPLC for carboxylic acid, as its more often in liquid form than the volatile gas.

+1 for this, this is also my understanding.

Title: Re: Carboxylic Acid Queries!!
Post by: VivaTequila on June 10, 2011, 10:04:21 pm

above endorsed