Dat Destroyer Orgo number 204

[Mrhyde]

At this low PH We will have excess " H3O + " ...... So of course the COO- becomes COOH

BUT when that happens then we have H2O and we must till regenerate the catalyst so my thinking was that H2O then must find an H ... and a great H is the NH3+ cation so then it takes that H and thus becomes H3O+ while making NH3 stable so everyone is happy !

But this is not what happens ? lol why wont the catalyst regenerate as it always does and do so by just taking the H from NH3+ ? ??

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[DAT Destroyer]

At this low PH We will have excess " H3O + " ...... So of course the COO- becomes COOH

BUT when that happens then we have H2O and we must till regenerate the catalyst so my thinking was that H2O then must find an H ... and a great H is the NH3+ cation so then it takes that H and thus becomes H3O+ while making NH3 stable so everyone is happy !

But this is not what happens ? lol why wont the catalyst regenerate as it always does and do so by just taking the H from NH3+ ? ??

Not a chance,,,,,The NH3+ group will stay in this form til about pH 9.6.......at a low pH such as 1.6.....virtually EVERY molecule that you would encounter would still be protonated. You should know that the COOH loses HALF of the H's at a pH of about 2.3...and NH3+ groups lose 50% of their Hs at about 9.6...This is known as pKa values. When you begin studies in BioChemistry this is CRITICAL to understand. For example.....when you are a dentist someday, and inject into an area that has infection, the pH is lowered,,,, thus the anesthetic contains various functional groups that may become protonated,,,,,this can translate into an anesthetic that is LESS effective !!! As you can see, this is a very important area to understand.

Hope this helps.

Dr. Romano