Weak acids & pH

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Maya Gollamudi 1G
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Joined: Thu Jul 25, 2019 12:15 am

Weak acids & pH

Postby Maya Gollamudi 1G » Sun Dec 01, 2019 9:40 pm

How does the solvent play a role in the pH of a weak acid solution?

Robin Cadd 1D
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Joined: Thu Jul 11, 2019 12:16 am

Re: Weak acids & pH

Postby Robin Cadd 1D » Mon Dec 02, 2019 8:52 am

Depending on the solvent, the amount of dissociation will differ. Since pH depends on the concentration of H+ in a solution, the identity of the solvent will play an important role in the pH.

Caroline Zepecki
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Joined: Fri Aug 09, 2019 12:16 am

Re: Weak acids & pH

Postby Caroline Zepecki » Mon Dec 02, 2019 8:53 am

In some solvents, the acid, although weak, will dissociate more.

sarahforman_Dis2I
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Joined: Sat Aug 17, 2019 12:18 am

Re: Weak acids & pH

Postby sarahforman_Dis2I » Mon Dec 02, 2019 10:26 am

Maya Gollamudi 1J wrote:How does the solvent play a role in the pH of a weak acid solution?


The pH is a measure of the concentration of H+ ions in solution. Some solvents may allow for the dissociation of a weak acid more than water, meaning that more H+ ions will dissociate. This means that the pH of the solution will be smaller in different solvents. I am not sure what other solvents are normally used when it comes to acid base reactions. I believe that the most common solvent is water.

Jessica Li 4F
Posts: 115
Joined: Fri Aug 09, 2019 12:16 am

Re: Weak acids & pH

Postby Jessica Li 4F » Mon Dec 02, 2019 11:50 am

Solvents can vary in their pH, and therefore the concentration of overall H+ and OH- ions there are in a given solution. The presence of the H+ and OH- already in the solvent would affect how much of the solute can dissociate.


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