hydrogen ion


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ion

 [i´on]
an atom or group of atoms having a positive (cation) or negative (anion) electric charge by virtue of having gained or lost an electron; substances forming ions are called electrolytes. adj., adj ion´ic.
dipolar ion an ion that has both positive and negative regions of charge.
hydrogen ion the positively charged hydrogen atom (H+), which is the positive ion of all acids. See also hydrogen ion concentration.
hydroxyl ion the negatively charged group, OH, present to excess in alkaline solutions.

hy·dro·gen ion (H+),

a hydrogen atom minus its electron and therefore carrying a unit positive charge (that is, a proton); in water, it combines with a water molecule to form hydronium ion, H5O2+, H7O3+, etc.

hydrogen ion [H+]

a positively charged hydrogen atom or proton.

hy·dro·gen ion

(H+ hī'drō-jen ī'on)
A hydrogen atom minus its electron and therefore carrying a unit positive charge (i.e., a proton); in water, it combines with a water molecule to form the hydronium ion, H3O+.

hydrogen ion

A free proton, which is the positively charged nucleus of a hydrogen atom.

ion

an atom or group of atoms having a positive (cation) or negative (anion) electric charge by virtue of having gained or lost one or more electrons. Substances forming ions are electrolytes.

ion channel
see channel.
dipolar ion
zwitterion.
hydrogen ion
the positively charged hydrogen atom (H+), present to excess in acid solutions.
ion pair
the pair of ions created when an atom has had an electron removed by ionizing radiation.
ion pump
see calcium pump, sodium pump.
ion trapping
a strategy for treatment of poisonings based on the principle that cell membranes are less permeable to ionized compounds. With knowledge of the characteristics of the toxin, treatment can be given to alter the acid-base balance in favor of ionization.
References in periodicals archive ?
The stirring rate was varied from 300 to 700 rpm under other identical conditions that temperature 43 AdegC, Radix Paeoniae Alba powders 1000 mg, hydrogen ion concentration 2.
Photodetachment cross-section of negatively charged hydrogen ion Preprint arXiv:1510.
What happens to the hydrogen ion concentration when you dilute the acid?
2] that has been converted to a hydrogen ion and bicarbonate ion) from the peripheral tissues to the lungs, where the reaction reverses and C[O.
The actual pH of soil with a base saturation below 100 percent depends on the balance between hydroxyl ion production by base hydrolysis, reaction (e) and hydrogen ion production by hydrogen exchange, reaction
6 pH units more acidic than the bulk solution, indicating retinal production of hydrogen ions, and again replicating similar findings from several other species (8).
2), the increase in concentration of the metal ions causes an upward movement in the diagram; the increase in hydrogen ions from [10.
These neutralized each other, because hydrogen ions and hydroxyl ions combined to form neutral water molecules.
The value of hydrogen ion concentration is then used in consequent equilibrium constant equations to calculate ionic equilibria and carbon dioxide solubility.
The acid and hydrogen ion form a boron-hydrogen bond which then breaks apart stable carbon dioxide which further reacts with hydrogen to form methanol and water.
The equation (4) explains relations between activity Hydroxide and Hydrogen ion in equilibred state.
The formal definition clarifies that pH refers to the negative logarithm of the hydrogen ion concentration.