• in an aqueous solution, an increased concentration of hydrogen ions yields a low pH, and subsequently, an acidic product. (wikipedia.org)
  • The distribution of copper (7440508) between a buffered aqueous solution of the metal ion and an organic solution of tobacco smoke condensate (TSC) in 4-methyl-2-pentanone (MIBK) has been studied. (cdc.gov)
  • Synonyms for an aqueous solution of hydrogen chloride include chlorohydric acid, hydrochloric acid, and muriatic acid. (cdc.gov)
  • McClendon J. F. Acidity curves in the stomachs and duodenums of adults and infants plotted with the acid of imported methods of measuring hydrogen ion concentration. (wikipedia.org)
  • The amount of acidity present in paper can be determined by calculating the hydrogen ion concentration. (surreycc.gov.uk)
  • so, the higher the concentration of hydrogen ions in the substance, the higher the acidity, and the lower is the pH value. (bewellbuzz.com)
  • The lesser the concentration of hydrogen ions in a substance, the lower is the acidity, higher the alkalinity, and the higher the pH. (bewellbuzz.com)
  • Soil acidity refers to the concentration of active hydrogen ions (H + ) in the soil. (ufl.edu)
  • The degree of acidity or alkalinity of any liquid (including blood) is a function of its hydrogen ion concentration [H + ], and pH is simply a way of expressing hydrogen ion activity. (radiometer.com)
  • Depending on the charge of the ion, two different classes can be distinguished: positively charged ions and negatively charged ions. (wikipedia.org)
  • Ionized calcium binds to negatively charged sites on protein molecules, competing with hydrogen ions for the same binding sites on albumin and other calcium-binding proteins. (medscape.com)
  • Hydrogen ions concentration, measured as pH, is also responsible for the acidic or basic nature of a compound. (wikipedia.org)
  • Lower pH values are associated with more active hydrogen ions and more acidic soil conditions. (ufl.edu)
  • Hydrogen forms the only cation that has no electrons, but even cations that (unlike hydrogen) still retain one or more electrons are still smaller than the neutral atoms or molecules from which they are derived. (wikipedia.org)
  • By definition, an acid is an ion or molecule that can donate a proton, and when introduced to a solution it will react with water molecules (H2O) to form a hydronium ion (H3O+), a conjugate acid of water. (wikipedia.org)
  • Because hydrogen ions are electrically-charged molecules, the electrodes within Chawang's pH sensor can detect the electrical charge generated by the concentration of hydrogen ions inside food, converting the level to pH values using what is known as the Nernst equation. (smu.edu)
  • In the image at left the hydrogen atom (center) contains a single proton and a single electron. (wikipedia.org)
  • Bioconcentration Factor (BCF)-- The quotient of the concentration of a chemical in aquatic organisms at a specific time or during a discrete time period of exposure divided by the concentration in the surrounding water at the same time or during the same period. (cdc.gov)
  • Inhalation is an important route of exposure to hydrogen chloride. (cdc.gov)
  • However, only 50% of exposed persons can perceive hydrogen chloride's odor at the OSHA permissible exposure limit (5 ppm), and odor may not provide adequate warning in the workplace . (cdc.gov)
  • Protective indoor ventilation practices can reduce the airborne viral concentrations and the overall viral exposure to occupants. (cdc.gov)
  • The effects of these exposures on hormone concentrations, and markers of function and/or injury in the olfactory bulb, hypothalamus and testes were measured after 1, 8 and 30days exposure. (cdc.gov)
  • Ceiling Value-- A concentration of a substance that should not be exceeded, even instantaneously. (cdc.gov)
  • whereas "p[H]" measures the concentration of hydrogen ions in a substance. (bewellbuzz.com)
  • The pH level is measured by the concentration of hydrogen ions found in a substance or solution. (smu.edu)
  • The urinary solubility of uric acid depends on its concentration in urine and the urinary pH. (medscape.com)
  • A positively charged hydrogen ion (or proton) can readily combine with other particles and therefore is only seen isolated when it is in a gaseous state or a nearly particle-free space. (wikipedia.org)
  • Indoors, the concentration of viral particles is often higher than outdoors. (cdc.gov)
  • Although it isn't known exactly how much the concentration of viral particles in air needs to be reduced to start reducing risk of viral infection, ventilation mitigation strategies still provide a reasonable approach to reducing risk. (cdc.gov)
  • Fretting in cell culture growth media is higher in those media containing higher calcium ion concentrations or containing hydrogen peroxide. (astm.org)
  • The calcium ion (Ca 2+ ) is one of the most prevalent cations in the body, where approximately 1 % is present in the extracellular fluid of blood. (radiometer.com)
  • KAE609 also increases cytoplasmic hydrogen ion concentrations in yeast cells. (jcvi.org)
  • The hydrogen anion, with its loosely held two-electron cloud, has a larger radius than the neutral atom, which in turn is much larger than the bare proton of the cation. (wikipedia.org)
  • Accordingly, the decamer population increases with increasing pH, as cationic residues are deprotonated, and with increasing salt concentration. (lu.se)
  • The analytical parameters, metal ion and hydrogen ion concentrations, were investigated. (cdc.gov)
  • Metal ion concentrations were determined by atomic absorption spectrophotometry. (cdc.gov)
  • Fretting may contribute to corrosion and metal ion and particle release directly, or may contribute to the initiation of crevice corrosion. (astm.org)
  • The aim of this study was to test the effect of varying alcohol concentrations of various commercially available mouthwashes on force decay of elastomeric chains in prestretched and unstretched condition. (thejcdp.com)
  • The effects of varying alcohol concentrations commonly found in mouth rinses on the force decay of elastomeric chain. (thejcdp.com)
  • The physico-chemical parameters in the water body vary in concentration along spatial, monthly and seasonal variation of Olosuru stream. (scirp.org)
  • The concentrations of most parameters exceeded recommended permissible limits of the Nigerian Standard for Drinking Water and World Health Organization for freshwater quality. (scirp.org)
  • Adsorption Coefficient (Koc)-- The ratio of the amount of a chemical adsorbed per unit weight of organic carbon in the soil or sediment to the concentration of the chemical in solution at equilibrium. (cdc.gov)
  • Hydrogen anions are formed when additional electrons are acquired: Hydride: general name referring to the negative ion of any hydrogen isotope (H−) Protide: 1H− Deuteride: 2H−, D − Tritide: 3H−, T − Hydrogen ions drive ATP synthase in photosynthesis. (wikipedia.org)
  • The salt effect cannot be described in terms of Debye screening, but involves the ion-specific sequestering of anions within the narrow channel. (lu.se)
  • At room temperature, hydrogen chloride is a colorless to slightly yellow gas with a pungent odor. (cdc.gov)
  • We have used magnetic relaxation dispersion to study bovine pancreatic trypsin inhibitor (BPTI) self-association as a function of pH, salt type and concentration, and temperature. (lu.se)
  • Due to its extremely high charge density of approximately 2×1010 times that of a sodium ion, the bare hydrogen ion cannot exist freely in solution as it readily hydrates, i.e., bonds quickly. (wikipedia.org)
  • For Each Hydrogen Or Hydroxide Ion Concentration Listed, Calculate The Concentration Of The Complementary Ion And The PH And POH Of The Solution. (academicpros.net)
  • How do you determine concentration of hydrogen ions when given the pH of a solution? (frostburg.edu)
  • For example, the molarity of hydrogen ions in a pH 5 solution is 10 -5 M. (frostburg.edu)
  • We argue that monomeric crystals form at high pH despite a high decamer population in solution, because the ion pairs that provide the critical decamer-decamer contacts are disrupted at high pH. (lu.se)
  • The pH value is an important indicator in numerous chemical and biochemical reactions and stands for 'pondus hydrogenii' - hydrogen weight. (testo.com)
  • For pH, which is measured on a logarithmic scale, a continuum of acid to base, the lower the number, the greater the amount of free hydrogen ions in the wine, and therefore the more intense the perception of acid is in a wine. (winemakermag.com)
  • When indoors, ventilation mitigation strategies can help reduce viral particle concentration. (cdc.gov)
  • Children exposed to the same levels of hydrogen chloride as adults may receive larger dose because they have greater lung surface area:body weight ratios and increased minute volumes:weight ratios. (cdc.gov)
  • RESULTS: The target amiloride concentration in the central nervous system required for maximal ASIC inhibition was achieved with a 75-mg intranasal amiloride dose. (bvsalud.org)
  • In addition, they may be exposed to higher levels than adults in the same location because of their short stature and the higher levels of hydrogen chloride found nearer to the ground. (cdc.gov)
  • This happens when hydrogen ions get pushed across the membrane creating a high concentration inside the thylakoid membrane and a low concentration in the cytoplasm. (wikipedia.org)
  • Leckband but monodisperse and tetrameric at high salt concentrations and Israelachvili, 2001), has not proven to be a fruitful (near the BPTI solubility limit). (lu.se)
  • Approximate values make it easier to visualize the Hydrogen Ion concentrations. (acid-base.com)
  • Continuous oxygen binding curves for two arthropodan hemocyanins were performed at different pH values ranging from 7.0 to 8.7 and in the presence of physiological concentrations of the bivalent ions Ca2+ and Mg2+. (uni-regensburg.de)
  • McClendon J. F. A direct reading potenciometer for measuring hydrogen ion concentration. (wikipedia.org)
  • Direct contact with aqueous solutions of hydrogen chloride or with concentrated vapor can cause severe chemical burns. (cdc.gov)
  • For example, x2 and /2 double or halve the [H + ] concentration and x10 and /10 have a tenfold effect. (acid-base.com)
  • The effect of hydrogen ion concentration on the force-degradation rate of orthodontic polyurethane chain elastics. (thejcdp.com)
  • The saccharin disrupts carbonic anhydrase IX's ability to regulate the cancer cell's pH level - its hydrogen ion concentration. (scienceblog.com)
  • The rubber tube is connected at K with a tube, L, leading from a hydrogen generator, and a slow stream of H2 passes down the rubber tube and out at G, thus converting the platinum wire from H to F into a hydrogen electrode. (wikipedia.org)