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Longer titles found: Hydrogen ion cluster (view)

searching for hydrogen ion 218 found (298 total)

alternate case: Hydrogen ion

Acid–base homeostasis (2,421 words) [view diff] no match in snippet view article find links to article

Acid–base homeostasis is the homeostatic regulation of the pH of the body's extracellular fluid (ECF). The proper balance between the acids and bases (i

catalyzes the transfer of a methyl group from trimethylglycine and a hydrogen ion from homocysteine to produce dimethylglycine and methionine respectively:

brackets around the substance of interest; for example, the molarity of the hydrogen ion is depicted as [H+]. Molar concentration or molarity is most commonly

number p I suggest the name "hydrogen ion exponent" and the notation p H {\displaystyle p_{\mathrm {H} }} . By the hydrogen ion exponent ( p H {\displaystyle

a negative hydrogen ion source, the ions are first accelerated to the energy of 160 MeV in the linear accelerator Linac 4. The hydrogen ion is then stripped

release of fragments from electron-impact dissociation of the molecular hydrogen ion and its isotopologues". Physical Review A. 96 (2): 022706. Bibcode:2017PhRvA

the polyatomic hydrogen sulfate anion (HSO−4). The removal of another hydrogen ion produces the sulfate anion (SO2−4). There are several patterns that can

compounds previously overlooked by biologists. Before Good's work, few hydrogen ion buffers between pH 6 and 8 had been accessible to biologists, and very

lowered levels of potassium in the blood (hypokalemia) and increased hydrogen ion excretion (alkalosis). This cause of mineralocorticoid excess is primary

in turn rapidly dissociates to form a bicarbonate ion (HCO− 3 ) and a hydrogen ion (H+) as shown in the following reaction: C O 2 + H 2 O ⇄ H 2 C O 3 ⇄

electric potential barrier that originally confined it, thus creating a hydrogen ion. This energy is equivalent to the Rydberg constant. Balmer Limit Lyman-alpha

in stars 1939 — Rupert Wildt realizes the importance of the negative hydrogen ion for stellar opacity 1952 — Walter Baade distinguishes between Cepheid

line’ where each oxygen atom simultaneously passes and receives a single hydrogen ion. It was an astonishing theory to propose at the time, since the water

dilute aqueous solution, the predominant acid species is the hydrated hydrogen ion H3O+ (or more accurately [H(OH2)n]+). In this case H0 and H− are equivalent

left, in accordance with Le Chatelier's principle. Because of this, the hydrogen ion concentration increases by less than the amount expected for the quantity

imports one sodium ion into the cytosol of a tubule cell as it ejects one hydrogen ion from the cell into the lumen of the proximal tubule. The sodium within

rays, later identified as positive ions in the gas phase including the hydrogen ion. He was the great uncle of the violinists Mikhail Goldstein and Boris

Carbaminohemoglobin (carbaminohaemoglobin BrE) (CO2Hb, also known as carbhemoglobin and carbohemoglobin) is a compound of hemoglobin and carbon dioxide

to alkalosis, the kidney may excrete more bicarbonate by decreasing hydrogen ion secretion from the tubular epithelial cells, and lowering rates of glutamine

hydrogen oxalate anion can be described as the result of removing one hydrogen ion H+ from oxalic acid, or adding one to the oxalate anion C2O2−4. The compound

undissociated molecules of the base. Bases yield solutions in which the hydrogen ion activity is lower than it is in pure water, i.e., the solution is said

Sørensen's 1909 introduction of the pH scale with a study of the effect of hydrogen ion concentration on invertase, and he became the leading world expert on

iodate KH(IO3)2 at 0.02 M the activity is 40% lower than the calculated hydrogen ion concentration, resulting in a much higher pH than expected. When a 0

The quinhydrone electrode may be used to measure the hydrogen ion concentration (pH) of a solution containing an acidic substance. Quinones form a quinhydrone

the concentration of charged species is zero. For a diprotic acid, the hydrogen ion concentration can be found at the isoionic point using the following

reaction is, thus, the removal of a hydrogen ion from the acid and its addition to the base. The removal of a hydrogen ion from an acid produces its conjugate

that dissociates into A−, called the conjugate base of the acid, and a hydrogen ion, H+. The system is said to be in equilibrium when the concentrations

altering the autoionization equilibrium, bases yield solutions in which the hydrogen ion activity is lower than it is in pure water, i.e., the water has a pH

hydrogen ion for the antiporter comes from the enzyme carbonic anhydrase, which takes water and carbon dioxide and forms bicarbonate and a hydrogen ion

controlled source of free metal ions in a manner similar to the regulation of hydrogen ion concentration by a pH buffer A metal-ion buffer solution contains the

with hydrogen ion in an ideal solution having is "zero potential at all temperatures" equivalently to standard enthalpy of formation of hydrogen ion is

are indole-3-carbinol and thiocyanate ion (plus glucose, sulfate, and hydrogen ion), which are envisioned to result from a rapid reaction of the unstable

A hydrogen atom is an atom of the chemical element hydrogen. The electrically neutral atom contains a single positively charged proton and a single negatively

occurs at high temperatures and moderately acidic (low pH) conditions. Hydrogen-ion metasomatism is the process that causes phyllic alteration. While the

membrane take in the amino acid coupled with a hydrogen ion that later gets expelled by the cell via a hydrogen ion pump. This is an energy dependent process

analytical concentration of the acid and CH is the concentration the hydrogen ion that has been added to the solution. The self-dissociation of water is

than 7.35. Acidemia and acidosis are not mutually exclusive – pH and hydrogen ion concentrations also depend on the coexistence of other acid-base disorders;

translocated into the matrix in a process that requires an electrochemical hydrogen ion gradient across the inner membrane. Mitochondrial Hsp70 binds to regions

1923, she worked with Edna H. Fawcett to publish a paper concerning the hydrogen-ion concentration in culture mediums. Their joint research considered "the

acid is the solvated hydrogen ion. In solution chemistry, it is usual to use H+ as an abbreviation for the solvated hydrogen ion, regardless of the solvent

actual electrolyte solution and not separated by a salt bridge. The hydrogen ion concentration is therefore not 1 mol/L, or 1 mol/kg, but corresponds

Theory of Ionic Velocity'; 'Ionic Velocities'; 'On the velocity of the Hydrogen Ion through Solutions of Acetates'; 'On the Velocities of the Ions and the

Chemoreceptors in the body sense a change in partial pressures and pH (hydrogen ion concentration) in the blood. Chemoreceptors are responsible for signaling

artificial buffer solutions and indicators for the determination of the hydrogen ion concentration under Hans Friedenthal in Berlin and published the results

of measuring hydrogen ion concentration. Amer. J. Physiol., 1915, 38, 2, 191. McClendon J. F., Sheldon A., Ben Karpman. The hydrogen ion concentrations

are all-trans-nonaprenyl diphosphate, 1-4-dihydroxy-2-napthoate, and a hydrogen ion, and the three products are demethylmenaquinol-9, diphosphate, and carbon

Detlev Wulf (1926). Electrical conductivity, electrical potential and hydrogen ion concentration measurements on the submaxillary gland of the dog, recorded

Arrhenius acid is hydrogen chloride (HCl) because of its dissociation of the hydrogen ion when dissolved in water. Sodium hydroxide (NaOH) is an Arrhenius base

system. It also needs to ensure that no build up of the sulfate and hydrogen ion waste products occurs, which would inhibit the bacterial activity. Laboratory

consistent with the Brønsted–Lowry definition because in reality the hydrogen ion exists as the hydronium ion, so that the neutralization reaction may

easily dissociate into a carboxylate anion and a positively charged hydrogen ion (proton), much more readily than alcohols do (into an alkoxide ion and

Kirkpatrick, D.S., and Proctor, P.M.: Reversible and Irreversible Changes in Hydrogen Ion Titration Curves of Melanins. Physiol. Chem. and Phvs. 11:217-223, 1979

several symporters/antiporters that specifically allow only one charged hydrogen ion (more commonly known as a proton) and one charged K+ ion. This group

Connolly, Thomas N.; Izawa, Seikichi; Singh, Raizada M. M. (1966). "Hydrogen Ion Buffers for Biological Research". Biochemistry. 5 (2): 467–77. doi:10

± 0.02 where c(H+) denotes the amount-of-substance concentration of hydrogen ion H+ and y1 denotes the activity coefficient of a typical uni-univalent

the enzyme ATP–ADP translocase dissipates the charge equivalent of one hydrogen ion from the gradient when moving ATP (outward) and ADP (inward) across the

to the concentration of two factors, calcium ion concentration, and hydrogen ion concentration. When these concentrations are varied in the same direction

dioica. Journal of Ecology 9, 1-17. [2] Olsen, C. (1923) Studies on the hydrogen ion concentration of the soil and its significance to the vegetation, especially

Winget, G. D; Winter, W; Connolly, T. N; Izawa, S; Singh, R. M (1966). "Hydrogen ion buffers for biological research". Biochemistry. 5 (2): 467–77. doi:10

the hydrogen ion concentration or activity of a solution to that of a standard solution; approximately equal to the negative logarithm of the hydrogen ion

growth pH. Neutrophiles are adapted to live in an environment where the hydrogen ion concentration is at equilibrium. They are sensitive to the concentration

approximately equal to the pH. However, beyond this pH range, the effective hydrogen-ion activity changes much more rapidly than the concentration. This is often

with metabolism) include, but are not limited to: carbon dioxide (CO2), hydrogen ion (H+), potassium (K+), adenosine (ADO), nitric oxide (NO)). These vasodilators

lumen and tubular epithelium. It begins with the active secretion of a hydrogen ion (H+) into the tubule fluid via a Na/H exchanger: In the lumen The H+

This means that ATP is broken down with water into ADP and a Hydrogen ion. This Hydrogen ion serves as energy to drive other processes. ATP6V1G2 also allows

Instead, the hydroxide can be decomposed to the oxide (by reduction of the hydrogen ion) using Rb metal: 2 Rb + 2 RbOH → 2 Rb2O + H2 Metallic Rb reacts with

these forests are growing on soils which are highly acidic, such that hydrogen ion toxicity prevents the growth of non-adapted species. Moreover, heath

stable carbocation during the addition process. The addition of the hydrogen ion to one carbon atom in the alkene creates a positive charge on the other

concentrations at all pH values. pH is defined in terms of the activity of the hydrogen ion pH = −log10 {H+} In the approximation of ideal behaviour, activity is

Columbia University. His doctoral thesis was The effect of temperature and hydrogen ion concentration upon the rate of destruction of the antiscorbutic vitamin

coefficients. For example, pH is defined as the negative logarithm of the hydrogen ion activity. If the prevailing view on the physical meaning and measurability

H_{2}CO_{3}\rightarrow CO_{2}+H_{2}O}}} This causes decreased circulating hydrogen ion concentration, and increased pH (alkalosis). The diagnosis of respiratory

electron to be about -1.6 × 10-19, a value now defined as -1 e. Since the hydrogen ion and the electron were known to be indivisible and a hydrogen atom is

example, the use of a standard state concentration of 10−7 mol/L for the hydrogen ion in a real, aqueous solution is common in the field of biochemistry. In

{[M^{n+}][OH^{-}]^{n}} } However, general-purpose computer programs are designed to use hydrogen ion concentrations with the alternative definitions. M ( O H ) n + n H +

these gaps, existing as an individual vacancy occupant (pairing as a hydrogen ion) or creating a hydroxide group with an adjacent oxygen. Rutile crystals

The reaction proceeds under acidic conditions. The alcohol accepts a hydrogen ion from sulfuric acid to form a water, which then leaves, creating a carbocation

prefix bi- is a deprecated way of indicating the presence of a single hydrogen ion, as in "sodium bicarbonate" (NaHCO3). The modern method specifically

to restore the level of carbonic acid by reacting bicarbonate with a hydrogen ion, an example of Le Châtelier's principle. The result is to make the blood

hydrogen. Boron monohydride is formed when the boron anion B− reacts with a hydrogen ion H+. It is also formed when atomic boron reacts with hydrogen. B + H2

fructose end resulting in the two monosaccharides. It does this by adding a hydrogen ion to the glycosidic atom by an imidazolium cation. From there, an unstable

during his doctoral thesis, however he lacked noting the importance of hydrogen ion concentration and mutarotation of glucose. The goal of Henri's thesis

Connolly, Thomas N.; Izawa, Seikichi; Singh, Raizada M. M. (1966). "Hydrogen Ion Buffers for Biological Research". Biochemistry. 5 (2): 467–77. doi:10

Strictly speaking pH is equal to −log10{H+} where {H+} is the activity of the hydrogen ion. In dilute solution concentration is almost equal to activity

that its mass-to-charge ratio was much smaller than the one for the hydrogen ion H+. In 1913 he measured the mass-to-charge ratio of ions with an instrument

of a single atom (actually, an ion since matter is ionized; usually a hydrogen ion, i.e. a proton). While the radiation pressure satisfies: 1 − β = P radiation

PET positron emission tomography pg picogram(s) micromicrogram pH hydrogen ion concentration PMN polymorphonuclear leukocyte po orally Po2 oxygen partial pressure 

career in biochemistry. He stayed at UCL doing work which included the hydrogen-ion dissociation curve of the crystalline albumin of the hen's egg. In 1931

2 HCrO− 4 ⇌ Cr 2O2− 7 + H2O This equilibrium does not involve a change in hydrogen ion concentration, which would predict that the equilibrium is independent

a positive hydrogen ion to another substance in a chemical reaction; by extension, a base is the substance which receives that hydrogen ion. A third common

granule membrane. To maintain the low pH within the granule, there is a Hydrogen ion pumping ATPase. Ral has been found within the granule's membrane. There

standard for hydrogen ion concentration. The most widely used electrode is the glass electrode, which is selective for the hydrogen ion. This is suitable

other electron is "stolen" from an additional hydrogen, leaving the hydrogen ion in solution. Reduction of NAD+: NAD+ + 2H+ + 2e− ↔ NADH + H+ NAD+ is

the charge-to-mass ratios between antiproton and negatively charged hydrogen ion, the BASE experiment has determined the antiproton's charge-to-mass ratio

two-electron system, such as the neutral Helium atom (He, Z = 2), the negative Hydrogen ion (H−, Z = 1), or the positive Lithium ion (Li+, Z = 3) is: For a more

Cherny VV, Markin VS, DeCoursey TE (June 1995). "The voltage-activated hydrogen ion conductance in rat alveolar epithelial cells is determined by the pH

Sherman, H. C., Thomas, A. W., & Baldwin, M. E. (1919). Influence of hydrogen-ion concentration upon enzymatic activity of three typical amylases. Journal

the protein to change shape and pump a proton across the membrane. The hydrogen ion gradient can then be used to generate ATP, transport solutes across the

Sherman, H. C., Thomas, A. W., & Baldwin, M. E. (1919). Influence of hydrogen-ion concentration upon enzymatic activity of three typical amylases. Journal

propaganda)". 1926–1927. Retrieved 2007-09-25. Redman, Thirza (1929). "The hydrogen ion concentration and the calcium and phosphorus content of the faeces of

HgNO3. This development allowed for testing the solubility of salts and hydrogen ion concentration, as well as acid/base and redox titrations. Conductometry

DNA replication chemistry. This technology measures the release of a hydrogen ion each time a base is incorporated. A microwell containing template DNA

the compound XOH is an acid, because it releases a proton, that is, a hydrogen ion. For example, nitrogen, sulfur and chlorine are strongly electronegative

section of the cycle is an inorganic phosphate is removed from 1,3BPG as a hydrogen ion and two electrons are added to the compound+. In complete reverse of

cell transfusion due to excess citrate in the blood As blood plasma hydrogen ion concentration decreases, caused by respiratory or metabolic alkalosis

most likely charge-carrying species were considered to be the aqueous hydrogen ion and the aqueous hydroxide ion. The electrical charging of solid water

OCLC 48055706. Hasselbalch KA (December 1964). "Calculation Of The Hydrogen Ion Concentration Of Blood From Free And Bound Carbon Dioxide Oxygen Binding

catalyst. A polymer acts as electrolyte. The charge is carried by the hydrogen ion (proton). The liquid ethanol (C2H5OH) is oxidized at the anode in the

nutrient availability is affected by soil pH, which is a measure of the hydrogen ion activity in the soil solution. Soil pH is a function of many soil forming

difficulty. In this context, if an acid is used instead of water, then the hydrogen ion (H+) is more easily able to dissociate in order to react with the aniline

cell membrane to enter the cell, it becomes charged due to gaining a hydrogen ion because of the lower pH inside the cell, and thus becomes unable to cross

Connolly, Thomas N.; Izawa, Seikichi; Singh, Raizada M. M. (1966). "Hydrogen Ion Buffers for Biological Research". Biochemistry. 5 (2): 467–77. doi:10

"Hexamine as an Urinary Antiseptic: I. Its Rate of Hydrolysis at Different Hydrogen Ion Concentrations. II. Its Antiseptic Power Against Various Bacteria in

O. (1922). "Absorption of nutrients and plant growth in relation to hydrogen ion concentration". Journal of General Physiology. 5 (1): 81–88. doi:10.1085/jgp

by a conveniently located enzyme-derived base to accept the resulting hydrogen ion. The result of these two steps is the production of the thioester acetyl

at the University of Kansas in 1927, writing a thesis on the role of hydrogen ion concentration in the precipitation of calcium and magnesium. Once she

acid receptor binding to rat brain synaptic membranes. Good, N.E., "Hydrogen ion buffers for biological research." "Biochemistry", 5(2), 467–477. Liu

Paracoccidioides". Derm. Venez. 3: 130–132. Restrepo, M; et al. (1969). "Effect of hydrogen ion concentration and of temperature on the growth of Paracoccidioides brasiliensis

not shown and this becomes a quadratic equation in the value of the hydrogen ion concentration value, [ H ] {\displaystyle {\ce {[H]}}} . Failed to parse

and that its mass-to-charge ratio was much smaller than that of the hydrogen ion H+. In 1898, Wilhelm Wien separated ions (canal rays) according to their

ammonium. These mutations lead to the nephron's inability to pair the hydrogen ion with ammonia, preventing hydrogen ions from being excreted through the

models are typically concerned with molecular hydrogen and its molecular hydrogen ion. It is concerned with processes such as ionization, above threshold ionization

McClendon J. F. New hydrogen electrodes and rapid methods of determining hydrogen ion concentrations. – Amer. J. Physoil., 1915, 38, 2, 180. Alvarez WC (1922)

enzyme kinetics, but at the time the experimental significance of the hydrogen ion concentration was not yet recognized. After Peter Lauritz Sørensen had

are inhibited, tending to result in a considerable rise of lactate and hydrogen ion concentrations in the rumen fluid. The pKa of lactic acid is low, about

best described as the uncommon seven-coordination. The presence of a hydrogen ion in the same cavity where a sodium ion is causes a repulsion between the

:1-16. 1924 The Electrical Charge on a Clay Colloid as Influenced by Hydrogen-Ion Concentration and by Different Salts. With W. C. Dayhuff. Soil Sci.,

Baking", "The Chemistry of Vegetable Cookery" and "Determination of Hydrogen Ion Concentration" and contains numerous illustrations of lab experiments

is required by osteoclasts for proton production. Without this enzyme hydrogen ion pumping is inhibited and bone resorption by osteoclasts is defective

target proteins of infected eukaryotes, to yield nicotinamide and a free hydrogen ion. bAREs are produced as enzyme precursors, consisting of a "A" and "B"

PEMs. The fuel for the PEMFC is hydrogen, and the charge carrier is the hydrogen ion (proton). At the anode, the hydrogen molecule is split into hydrogen

acids Asn148 (asparagine at position 148) and His75, causing a proton (hydrogen ion) to transfer between the oxygen atoms. The free oxygen atom coordinates

Medical Research. Menten, M. L.; Crile, G. W. (1915). "Studies on the hydrogen-ion concentration in blood under various abnormal conditions". Am. J. Physiol

{3H+{}+ {\overset {(base)}{Al(OH)3}}<=> 3H2O{}+ Al_{(aq)}^3+}}} The hydrogen ion, or hydronium ion, is a Brønsted–Lowry acid when dissolved in H2O and

by receptor-mediated endocytosis. The pH of the vesicle is reduced by hydrogen ion pumps (H+ ATPases) to about 5.5, causing transferrin to release its iron

Durand H, Rayle DL (June 1973). "Physiological evidence for auxin-induced hydrogen-ion secretion and the epidermal paradox". Planta. 114 (2): 185–93. doi:10

from the U.S. Department of Energy to design a high-current negative hydrogen ion source under the SBIR Phase II project. In August 2014, Phoenix Nuclear

away from an OH bond of a coordinated water molecule and releases a hydrogen ion. The polarizing effect of Zn2+ is part of the reason why zinc is found

release of carbon dioxide and acetone. The compound can easily lose a hydrogen ion from the methylene (CH2) in the ring (carbon 5); which creates a double

ionic structures. When an acid is dissolved in water it separates the hydrogen ion from the other ions of the acid and the hydrogen reacts with the water

dissolved in water and is due to the oxygen atom donating a lone pair to the hydrogen ion. This can be seen more clearly when looked at it in two more common molecules

efficient when the aqueous droplets are small enough to transport a single hydrogen ion (the smaller the droplets, the greater the number of acid water droplets

the technicalities of having opposite charges, a negatively charged hydrogen ion was used in place of the proton. The ion, two electrons bound electrostatically

Thomas Richard Parsons: Parsons, T. R.; Poulton, E. P. (1923). "The Hydrogen Ion Concentration of the Blood in certain Pathological Conditions, as Determined

because sodium reabsorption in the distal tubule is linked with acid/hydrogen ion (H+) secretion. Absent or insufficient levels of aldosterone stimulation

the H2 receptor and prevent histamine from binding, causing decreased hydrogen ion secretion.[medical citation needed] While histamine has stimulatory effects

a muon essentially form a positively charged muonic molecular heavy hydrogen ion (d–μ–t)+. The muon, with a rest mass 207 times greater than the rest

neutron (symbol n). His model resembled the bonding model for molecule Hydrogen ion, H2+: a single electron was shared by two protons. Heisenberg's theory

boron. The borate–guar reaction is reversible, and depends on the pH (hydrogen ion concentration) of the solution. This reaction is used to give the toy

also central to acid-base neutrality and enzyme function. An acid, a hydrogen ion (H+ , that is, a proton) donor, can be neutralized by a base, a proton

Preliminary Note on the Relationship of the Intestinal Protozoa of Man to the Hydrogen Ion Concentration of their Environment". Indian Medical Gazette. 58 (4):

of Applied Biology 8 20-26 Emily M. Berridge (1924) The influence of hydrogen-ion concentration on the growth of certain bacterial plant parasites and

Hunziker, O F; W. A. Cordes; B. H. Nissen (1 July 1931). "Method for Hydrogen Ion Determination of Butter". Journal of Dairy Science. 14 (4). American

Scheraga, Harold (January 1962). "Structural studies of paramyosin. I. Hydrogen ion equilibria". Biochemistry. 1: 95–107. doi:10.1021/bi00907a015. PMID 14492100

catalytic reduction system using aqueous ammonia, which performs condensate hydrogen ion content (pH) control and reduction of NOx emissions. Additionally, there

noncompetitively inhibits an archetypal, membrane-bound mechanosensitive sodium-hydrogen ion transporter known as NHE-1. It is primarily found on cells of the peripheral

electric charge results from the separation of the positive aqueous hydrogen ion and the negative aqueous hydroxyl ion as the water droplets form. Thomson

PMID 15545345. S2CID 13242391. Brandis K. "2.6 Regulation of Intracellular Hydrogen Ion Concentration". Acid-Base Physiology. Anaesthesia Education Website.

Me" (Science Wonder Stories, June 1929) "Report of the Subcommittee on Hydrogen-Ion Concentration with Special Reference to the Effect of Flour Bleach",

strategy is to remove the displacer by chemical reaction; for instance if hydrogen ion was used as displacer it can be removed by reaction with hydroxide, or

Macmillan. OCLC 01057945. Addoms, Ruth M. (March 1927). "The Effect of the Hydrogen Ion on the Protoplasm of the Root Hairs of Wheat". American Journal of Botany

of Ecology 8 (1): 202–215. Salisbury, E.J. (1922) Stratification and Hydrogen-ion concentration of the soil in relation to leaching and plant succession

c157. ISSN 0363-6143. PMID 6320654. Edelman, Isidore S. (25 May 1965). "Hydrogen-ion dependence of the antidiuretic action of vasopressin, oxytocin and deaminooxytocin"

\mathrm {p} K=-\log _{10}K} dimensionless dimensionless Logarithm of hydrogen ion (H+) activity, pH pH p H = − log 10 ⁡ [ H + ] {\displaystyle \mathrm

detected in April 2019 using the airborne SOFIA telescope. The helium hydrogen ion is isoelectronic with molecular hydrogen (H 2). Unlike the dihydrogen

senior doctor for eight years. With Löffler he published a paper on "The hydrogen ion concentration in faeces and its importance in acid-base balance". In

outward-facing conformation. Subsequently, through rapid binding of a hydrogen ion, it transitions to state 2. During state 3, the cotransporter captures

is the slope, ideally equal to RT/nF, and {H+} is the activity of the hydrogen ion. The expression rearranges to [ H + ] = 10 E − E 0 s   o r   [ H + ]

mass-to-charge ratio was over a thousand times lower than that of a hydrogen ion (H+), suggesting either that the particles were very light and/or very

form water. The energy released during this process is used to create a hydrogen ion (or proton) gradient across the inner membrane of the mitochondrion.

AWWA. 55:12 P&R 40 and 42. Baylis, John R. (1923). “Tungsten Wire for Hydrogen-Ion Determinations.” Ind. Eng. Chem. 15:8 852-3. “Among Chemists.” (1926)

proceeds rapidly. The catalytic cycle produces the bicarbonate ion and the hydrogen ion as the equilibrium H2CO3 ⇌ HCO− 3 + H+ favours dissociation of carbonic

S2CID 107618872. Batigin VN, Deviatkov ND, Linar EY, etc. Probe to determine the hydrogen ion activity of biological media. The USSR inventors certificate № 296346

doi:10.1037/h0070193 McClendon JF, Sheldon A, Karpman B (1918). The hydrogen ion concentrations of the contents of the small intestine. Journal of Biological

lactic acid. This reaction oxidizes NADH to NAD, thereby releasing a hydrogen ion, promoting acidosis. For this reason, fast glycolysis can not be sustained

membrane for proton exchange membrane (PEM) fuel cells by permitting hydrogen ion transport while preventing electron conduction. Solid Polymer Electrolytes

Likewise, a cation with a greater standard electrode potential than a hydrogen ion will be reduced instead of hydrogen. Various cations have lower electrode

exchange effluent is always quite high due to the presence of anions and hydrogen ion and therefore conductivity measurement is not useful for this purpose

chloroplasts, the pH of the stroma rises from 7.0 to 8.0 because of the proton (hydrogen ion, H+) gradient created across the thylakoid membrane. The movement of

as he called them, with a charge-to-mass ratio 1840 times that of a hydrogen ion. Similar results had been found by George FitzGerald and Walter Kaufmann

dissolved carbon dioxide (CO2) present in the blood vessel, as well as the hydrogen ion concentration. Both of these factors affect pH and, in turn, the balance

stimulates gastric-acid secretion. Cortisol's only direct effect on the hydrogen-ion excretion of the kidneys is to stimulate the excretion of ammonium ions

hemodiafiltration MeSH H01.181.529.400 – hydrogen bonding MeSH H01.181.529.428 – hydrogen-ion concentration MeSH H01.181.529.428.176 – acid-base equilibrium MeSH H01

hemodiafiltration MeSH H01.181.529.400 – hydrogen bonding MeSH H01.181.529.428 – hydrogen-ion concentration MeSH H01.181.529.428.176 – acid-base equilibrium MeSH H01

influence exercised by various types of vegetation on the degree of acidity (Hydrogen-ion concentration), p. 443-487. Raunkiær, C. (1926) Nitratindholdet hos Anemone

concentration of the hydroxide ion (OH− ) equals that of the (solvated) hydrogen ion (H+ ), with a value close to 10−7 mol L−1 at 25 °C. See data page for

Ammonia may itself diffuse across the renal tubules, combine with a hydrogen ion, and thus allow for further acid excretion. Ammonium ions are a toxic

undergoing the reactions. Some findings demonstrate that an increase in the hydrogen ion concentration resulted in large increases of the Hg(II) uptake, leading

acceleration. acid A molecule or ion capable of donating a hydron (proton or hydrogen ion H+), or, alternatively, capable of forming a covalent bond with an electron

with them. Chemist Glen Joseph at Sunkist was attempting to measure the hydrogen-ion concentration in lemon juice electrochemically, but sulfur dioxide damaged

right panel shows relatively uninteresting, single peak of molecular hydrogen ion. The vertical axis gives grating position of the compressor in a chirped

oxygen (white) ion is surrounded by four hydrogen ions (black) and each hydrogen ion is surrounded by 2 oxygen ions, as shown in Figure 5. Maintaining the

{\displaystyle a\approx 1} and b ≈ 3 {\displaystyle b\approx 3} for a cool hydrogen ion dominated atmosphere oppacity model ( T < 5000 K {\displaystyle T<5000K}

bare ion. The ions observed are created by the addition of a proton (a hydrogen ion) and denoted [ M + H ] + {\displaystyle {\ce {[{M}+H]+}}} , or of another

electrons carry a negative charge opposite but the same size as that of a hydrogen ion while having a mass over one thousand times less. Many such electrons

Bacteriorhodopsin, a membrane protein that uses energy from light to drive the hydrogen-ion pump, which are found in Haloquadratum walsbyi absorbs energy from light

in decreased gastric acid secretion and gastric volume, and reduced hydrogen ion concentration. Ranitidine's acid-lowering effect is more pronounced for

that the iron dissolved into the water before he opened it, due to the hydrogen ion concentration. To verify his results, he sent his undergraduate students

Ammonia may itself diffuse across the renal tubules, combine with a hydrogen ion, and thus allow for further acid excretion. Some authors have shown that

PMID 26017053. Pitt, J. I.; Hocking, A. D. (1977). "Influence of solute and hydrogen ion choncentration on the water relations of some xerophilic fungi". Journal

0-2 ×10−6 Histamine 6.7-8.6 ×10−8 Histidine 9-17 ×10−6 1.1-3.8 ×10−5 Hydrogen ion(pH 7.4) 4 ×10−11 beta-Hydroxybutyric acid 1-6 ×10−6 1-9 ×10−6

Brønsted-Lowry acid's strength corresponds with its ability to release a hydrogen ion. One common measure of acid strength for concentrated, superacidic liquid

"A Study of Superacid Solutions. II. A Chemical Investigation of the Hydrogen-Ion Activity of Acetic Acid Solutions". Journal of the American Chemical

Let's say that for at a certain ionization voltage, a singly charged hydrogen ion acquires a resulting velocity of 1.4x10^6 ms−1 at 10~kV. A singly charged

stemming from its unusual electron configuration and small size, the hydrogen ion is very small (radius around 150 fm compared to the 50–220 pm size of

catalyzed by H3O+: 433  This can be explained for a mechanism of specific hydrogen-ion catalysis of a reactant R by H3O+ (or D3O+). H3O+ + R ⇌ RH+ + H2O RH+

microcapsule-embedded fluorescent molecule that has the potential to measure hydrogen ion concentration in cells under physiological conditions and also to estimate

atoms of hydrogen that is due to free electrons becoming bound to a hydrogen ion and emitting photons, which are smoothly spread over a wide range of

concentrate, application concentration, exposure time, timing of the solution, hydrogen ion concentration (pH value), temperature, etc. play an certain role for

negative charges originates from hydroxyl ions, which can gain or lose a hydrogen ion (H+) in response to soil pH, in such way as to buffer the soil pH. They

because of the high-radiation environment. Pioneer 10 also discovered a hydrogen ion torus at the orbit of Io. Pioneer 11 encountered the Jupiter system nearly

1927). "The Absorption of Water by Plant Tissue in Relation to External Hydrogen-Ion Concentration" (PDF). The Journal of Experimental Biology. 4 (3). London:

and coil mass models than those used by Freeland. That paper assumed hydrogen ion (H I) number densities of 0.05-0.2 cm−3 (9x10−23 - 3x10−22 kg/m3) for

a fuel cell, the hydrogen atom dissociates into a positively charged hydrogen ion and a negatively charged electron which is diverted to an electric load

and antigenicity are remarkably resistant to heat, a wide range of hydrogen ion concentrations, and enzymes. Replication of PPV in vitro is cytocidal

{K+}}} , Mg 2 + {\displaystyle {\ce {Mg^2+}}} ) being replaced with a hydrogen ion. Si − O − Na + + ( H + + OH − ) ⟶ Si − OH + Na + + OH − {\displaystyle

(April 2023). "Simulation of Space Weathering on Asteroid Spectra through Hydrogen Ion Irradiation of Meteorites". The Planetary Science Journal. 4 (4): 10

reactions (Type 1) involve charge transfers, by donation of electron (e–) or Hydrogen ion (H+), to form radicals and ROS, such as anion radical superoxide, hydrogen