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Results tagged with acid-base
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user 35640
This tag should be applied to questions concerning acid and base reactions. An acid is capable of donating a hydron/ proton (Brønsted acid) or capable of forming a covalent bond with an electron pair (Lewis acid). A base on the other hand is a chemical species/ molecular entity having an available pair of electrons capable of forming a covalent bond with a hydron/ proton (Brønsted base) or with the vacant orbital of some other species (Lewis base).
7
votes
Accepted
Is hydrogen (on its own) considered an acid?
Well, you can never have H+ by itself. In aqueous media it's always associated with the lone pairs of water molecules and exists as H3O+. But yes, theoretically speaking H+ is a Brønsted–Lowry acid as …
- 1,031
4
votes
Accepted
Where on the backbone does a peptide get protonated at low pH?
In the backbone of a polypeptide, you would find amide bonds formed from the amino (NH2) and carboxyl (COOH) groups of two amino acids. Water is lost in this condensation process:
The peptide backb …
- 1,031