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3. The bicarbonate ion carries a negative one formal charge and is an amphiprotic species which has both acidic and basic properties. It is both the conjugate base of carbonic acid H 2 CO 3; and the conjugate acid of CO 2− 3, the carbonate ion, as shown by these equilibrium reactions: CO 2− 3 + 2 H 2 O ⇌ HCO − 3 + H 2 O + OH − ⇌ H 2 ...
It is equal to 6.1. [HCO − 3] is the concentration of bicarbonate in the blood [H 2 CO 3] is the concentration of carbonic acid in the blood; When describing arterial blood gas, the Henderson–Hasselbalch equation is usually quoted in terms of pCO 2, the partial pressure of carbon dioxide, rather than H 2 CO 3 concentration.
Atomic numbers (Z) are a special case of charge numbers, referring to the charge number of an atomic nucleus, as opposed to the net charge of an atom or ion. The charge numbers for ions (and also subatomic particles ) are written in superscript, e.g., Na + is a sodium ion with charge number positive one (an electric charge of one elementary ...
3 exist in aqueous solutions subjected to pressures of multiple gigapascals (tens of thousands of atmospheres) in planetary interiors. [17] [18] Pressures of 0.6–1.6 GPa at 100 K, and 0.75–1.75 GPa at 300 K are attained in the cores of large icy satellites such as Ganymede, Callisto, and Titan, where water and carbon dioxide are present ...
It has a molecular mass of 60.01 g/mol and carries a total formal charge of −2. It is the conjugate base of the hydrogencarbonate (bicarbonate) [8] ion, HCO − 3, which is the conjugate base of H 2 CO 3, carbonic acid.
3 Ammonia: NH + 4 Ammonium ion C 5 H 5 N Pyridine: C 5 H 6 N + Pyridinium: C 6 H 5 NH 2 Aniline: C 6 H 5 NH + 3 Phenylammonium ion C 6 H 5 CO − 2 Benzoate ion C 6 H 6 CO 2 Benzoic acid: F − Fluoride ion HF Hydrogen fluoride: PO 3− 4 Phosphate ion HPO 2− 4 Hydrogen phosphate ion OH − Hydroxide ion H 2 O Water (neutral, pH 7) HCO − 3 ...
In step 3), a proton transfer (H +) occurs from the OH −1 to the non-coordinated O − in CO 3 −2 coordinated to the Zn +2 atom in the active site. Next, a bicarbonate ion is released and the catalytic site is regenerated through the binding of another water molecule in exchange for the bicarbonate ion .
1,3,5,7-Adamantanetetracarboxylic acid is an adamantane derivative containing four carboxylic acid groups bonded to each of its four tetrahedral carbon centers. Its tetrahedral symmetry provides applications as a hydrogen-bonded organic framework linker [ 4 ] and as a dendrimer core.