Chemical Forums
Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: ampacmopac on May 14, 2007, 07:54:00 AM
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Hi
How can I estimate the amount of acid, HCl, which is required for the hydrolysis of the ester under investigation.
Thank you very much
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Acid is a catalyst
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Acid is a catalyst
at first thank you for your answer
at the second i know very well that the acid in this reaction is a catalyst and it will go out at the end of the reaction, but what is the measure by which we can decide its necessary amount to ensure that its amount is enough for the hydrolysis.
is it the amount of my ester? the number of the ester groups in it? ..?
thank you
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Usuallu 0.01 to 0.1 mole of acid per mole of ester is used
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It depends how fast you want your reaction.
The rate of hydrolysis is first order with respect to the acid concentration.
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It depends how fast you want your reaction.
The rate of hydrolysis is first order with respect to the acid concentration.
yeah, its just like biological enzymes. the more amount of active sites the better the reaction.
although if you're asking about a minimum amount, i'm assuming it depends on the moles of regents?. Correct me if i'm wrong
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I am a chemical engineer, not a chemist. I look from the point of how fast I want my reaction be.
For acidic hydrolysis of ester, the rate equation is given as:
rate = k[ester][H+][H2O]
yeah, its just like biological enzymes. the more amount of active sites the better the reaction.
LOL. They are not the same. A typical rate equation for enzyme-catalysed reactions is:
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