Homework Help: chemistry

Posted by michael on Wednesday, May 26, 2010 at 1:31am.

Consider the Ka values for the following acids:
Cyanic acid, HOCN, 3.5 ´ 10-4
Formic acid, HCHO2, 1.7 ´ 10-4
Lactic acid, HC3H5O3, 1.3 ´ 10-4
Propionic acid, HC3H5O2, 1.3 ´ 10-5
Benzoic acid, HC7H5O2, 6.3 ´ 10-5

Which of the following is the weakest base?

is it propanionic i am not sure

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