biological acid

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705913589
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Joined: Fri Sep 29, 2023 11:10 am

biological acid

Postby 705913589 » Mon Dec 04, 2023 10:40 pm

Hi, can someone help me with this problem: The Ka of a biological acid, HA is 1.8 x 10-5. In the stomach, the pH is around two. Which state, neutral or ionized, is the biological acid at pH = 2? can you please explain the process/steps? Thank you!
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Luke_Dreyer 2F
Posts: 40
Joined: Fri Sep 29, 2023 11:00 am

Re: biological acid

Postby Luke_Dreyer 2F » Mon Dec 04, 2023 10:43 pm

First you need to find the pKa of the acid using pKa= -logKa. Then compare pKa to pH. If pKa > pH it will be more acidic. If pH > pKa it will be more basic.
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