Naked Science Forum
Non Life Sciences => Chemistry => Topic started by: misstear31 on 24/03/2010 13:42:16
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Hi,
I have a mid term exam tomorrow, and I can't answer a question from a previous exam...
Here is the question with formulas :
(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fimg12.imageshack.us%2Fimg12%2F198%2Fimg000025k.jpg&hash=c390b8b75540cde60df34e6e7eb670eb)
Text : The four compounds A, B, C and D all have carboxyl group and three of them have an amino group.
You measure the pK values for these 7 group and obtain the values : 2, 3, 4, 5, 8, 9 and 10.
Which values correspond to which group in A, B, C and D ?
I have looking for an explanation everywhere, you are my last chance.
Thanks a lot for your answers...