Acids in solution

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kristinalaudis3e
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Acids in solution

Postby kristinalaudis3e » Tue Dec 15, 2020 7:57 pm

Hello,

In lecture Lavelle stated that acid in a solution will be at pH 6. Does he mean the acid itself is at pH 6 or does he mean the solution will become pH 6?

705383815
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Re: Acids in solution

Postby 705383815 » Tue Dec 15, 2020 8:27 pm

pH refers to the concentration of H+ in a solution.

Andreas Krumbein 1L
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Re: Acids in solution

Postby Andreas Krumbein 1L » Tue Dec 15, 2020 8:29 pm

The solution is at pH 6, since the way in which pH is measured is through the H3O+ concentration, which requires that the water molecules ionize the H+ from the rest of the acid's molecular complex. Without being in solution, the H+ remains attached to the rest of the acid and no H3O+ can be measured.

Izamary Marquez 2H
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Re: Acids in solution

Postby Izamary Marquez 2H » Tue Dec 15, 2020 9:56 pm

Also, I am a little confused on how we know whether it's 100% associated... Can we determine this based on the Lewis Structure of the molecule? In general, what does it mean for the acid to be "completely associated"?


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