Medicine, 30.09.2019 18:30 dlaskey646
Aspirin is a weak acid with a pka of 3.5 that is absorbed more effectively in the stomach than the small intestine. the ph of your stomach is around 1.5 and the ph of your small intestine is approximately 6.0. is aspirin absorbed more readily when it is protonated or deprotonated? what is the approximate ratio of conjugate base to acid when it is absorbed more readily?
Answers: 3
![\frac{[A^-]}{[HA]} = \frac{1}{100}](/tpl/images/0277/1676/60e40.png)
![pH = pKa + log \frac{[A-]}{[HA]}](/tpl/images/0277/1676/76b1d.png)
![log \frac{[A-]}{[HA]} = pH - pKa](/tpl/images/0277/1676/fefa1.png)
![log \frac{[A-]}{[HA]} = 1.5 - 3.5](/tpl/images/0277/1676/d1fc4.png)
![\frac{[A-]}{[HA]} = 10^{-2}](/tpl/images/0277/1676/1fc16.png)
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Aspirin is a weak acid with a pka of 3.5 that is absorbed more effectively in the stomach than the s...
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