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Is HCl synthesized in the body and released to the stomach?

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Jfalken:
So we have all been told that the parietal cells secrete HCl to the stomach yet I have yet to see a reaction formula that shows that H+ + Cl- --> HCl in the body.
All I ever see is protons being excreted into the lumen and that Cl- is there too.
But nowhere have I seen that HCl is actually formed.
To have solvatized ions in the lumen does not count as HCl as they are, as stated, solvatized.

Have I missed something here?
A rxn or similar?

Babcock_Hall:
I think that the problem lies the interpretation of what it means to make HCl.  IMO, the presence of hydrogen ions and chloride ions counts as HCl, but YMMV.

Borek:
Generally speaking there is no such thing as "HCl in water". It immediately dissociates into H+ and Cl-, so any solution containing these two (from whatever source) is identical to the solution prepared by dissolving HCl in water.

This is not much different from other solutions. Imagine a solution that is 0.1 M in Na+, 0.1 M in K+, 0.1 M in Cl- and 0.1 M in Br-. Is it a solution of 0.1 M NaCl and 0.1 M KBr, or 0.1 M NaBr and 0.1 M KCl? Or perhaps neither and the question about which salts are dissolved doesn't make much sense, as it is ions present that matter, not the way the solution was made?

Jfalken:
If I take water, and I put NaCl into it so I get the chloride ions in the water and then I add protons (from any random source), then according to your definition I should have HCl containing solution because there are Cl ions and an excess of protons..
I do not really agree with you here.
If textbooks wants to say that we PRODUCE HCl acid then I want to see a reaction mechanism showing that HCl is formed.
If the protons originates from a different source, and the chloride ions originate from a source of its own, then one can not simply say that it is HCl acid..

Borek:

--- Quote from: Jfalken on March 31, 2021, 09:51:33 AM ---I do not really agree with you here.
--- End quote ---

Two people pointed you to a flaw in your line of thinking, if you don't accept it - your choice.

But you won't get better answer.

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