• Minimal composition together with only low molecular sizes of molecules ensured a decent penetration profile and moreover, the possibility to attribute the observed effects to hydrogen or hydroxide ion concentration, or in other words, pH. (triprinceton.org)
  • They are concentration effects and reflect the fact that pH is related to the logarithm of the hydrogen ion concentration. (wikipedia.org)
  • Similarly, if strong alkali is added to the mixture the hydrogen ion concentration decreases by less than the amount expected for the quantity of alkali added. (wikipedia.org)
  • Because of this, the hydrogen ion concentration increases by less than the amount expected for the quantity of strong acid added. (wikipedia.org)
  • A buffer solution (more precisely, pH buffer or hydrogen ion buffer) is an aqueous solution consisting of a mixture of a weak acid and its conjugate base , or vice versa. (wikipedia.org)
  • The relative concentration of undissociated acid is shown in blue and of its conjugate base in red. (wikipedia.org)
  • where C A is the analytical concentration of the acid. (wikipedia.org)
  • When we find some atoms and ions which contain the same number of electrons, we call them isoelectronic species. (aglasem.com)
  • After equilibrium was attained, concentration of PC1 5 was found to be 0.5 x 10 -1 mol L -1 . (aglasem.com)
  • Hydrogen ion concentration is expressed in terms of PH units, representing a measure of the acidity or the alkalinity of a solution. (preservearticles.com)
  • Since this is where hydrogen and hydroxyl ions are equal in number, a pH of 7 represents neutrality, that is, a midpoint between acidity and alkalinity. (preservearticles.com)
  • Soil pH (potential Hydrogen ions) is an indicator for relative soil alkalinity or acidity. (proflowers.com)
  • Acidity and alkalinity are measured in pH (potential of hydrogen). (angelfire.com)
  • Keeping our acidity and alkalinity balanced means regulating the hydrogen ion concentration in our body fluids. (angelfire.com)
  • During the dawn of Big Bang, when the temperature of the young universe had cooled down, the first molecular bond of HeH+ was created through the association of the H+ ( hydrogen ion or proton) and helium atoms due to radiation, scientists proposed. (thefreedictionary.com)
  • Heating increases the kinetic (translational, rotational, and vibrational) energy of the atoms composing elements and the molecules or ions composing compounds. (explorelearning.com)
  • As the kinetic (translational) energy of the atoms, molecules, or ions increases, the temperature of the matter increases. (explorelearning.com)
  • Heating a sample of a crystalline solid increases the kinetic (vibrational) energy of the atoms, molecules, or ions. (explorelearning.com)
  • Oxygen & hydrogen atoms. (brainscape.com)
  • It is defined by the negative of the logarithm of hydrogen ion concentration: The higher the hydrogen ion concentration the lower the pH value. (livingnlimbo.com)
  • Bio Exams 1-3 Exam #1 1) What is the H+ (hydrogen ion) concentration of an aqueous solution that has a pH of 2? (coursehero.com)
  • Tabulation of hydrogen and hydroxyl ion concentrations of some acids and bases. (wikipedia.org)
  • The use of the hydrogen ion concentration alone is a convenience that implies that the hydroxyl ion is also present in inverse proportion to the hydrogen ion. (wattsupwiththat.com)
  • Roots of high-yielding grain and forage crops remove basic cations from the soil and release hydrogen into soil solution to maintain an ionic charge balance within the tissue. (osu.edu)
  • Chloride (Cl −) and hydrogen (H +) ions are secreted separately in the stomach fundus region at the top of the stomach by parietal cells of the gastric mucosa into a secretory network called canaliculi before it enters the stomach lumen. (livingnlimbo.com)
  • Carbon dioxide tension (PaCO 2 ) and concentrations of sodium, potassium, chloride, [H + ], bicarbonate and haemoglobin were measured and strong ion difference calculated. (biomedcentral.com)
  • The chloride ion forms a stable complex with trivalent iron. (yarchive.net)
  • The chloride and/or the acetate ions form stable complexes with iron ions which aids in the dissolution of rust. (yarchive.net)
  • In this study, angle- and concentration-dependent static and dynamic light scattering is applied to investigate changes in the molecular weight, size, and intermolecular interactions of CM after the addition of \textgreek{b}-lactoglobulin (\textgreek{b}-Lg) and calcium chloride. (tum.de)
  • Addition of a surplus of \textgreek{b}-Lg impairs the colloidal stability of CM. In the presence of 0.5wt{%} \textgreek{b}-Lg and natural calcium chloride concentrations (10mM), the molecular weight of CM is reduced and the radius of gyration is increased. (tum.de)
  • In contrast, the structure of casein micelles is not altered by the presence of \textgreek{b}-Lg at elevated calcium chloride concentrations. (tum.de)
  • The repulsive forces between the CM show no significant dependence on \textgreek{b}-Lg for all calcium chloride concentrations tested. (tum.de)
  • 1. (Chemistry) any substance that dissociates in water to yield a sour corrosive solution containing hydrogen ions, having a pH of less than 7, and turning litmus red. (thefreedictionary.com)
  • The important point, which is usually overlooked in discussions of the chemistry of seawater, when talking about the hydrogen ion concentration, is that it is the ratio of hydrogen ions to hydroxyl ions that determines the chemical behavior. (wattsupwiththat.com)
  • Students will understand the properties that describe solutions in terms of concentration, solutes, solvents, and the behavior of acids and bases. (uen.org)
  • Differentiate between acids and bases in terms of hydrogen ion concentration. (uen.org)
  • Those sewer users who discharge wastewater with concentrations in excess of domestic strength wastewater as identified in the current user charge system. (ecode360.com)
  • The ATP concentration, just as the ATP/ADP ratio, as well as an exercise-induced increase in this ratio, correlates with the VO 2max level in these subjects which allows them to be considered as the important factors characterising physical capacity and exercise tolerance. (springer.com)
  • pH is the logarithmic value of the inverse of the hydrogen ion concentration. (livingnlimbo.com)
  • The hydrogen ion concentration in water determines the pH level. (gov.mb.ca)
  • Acidosis during cardiopulmonary bypass (CPB) has been related to the strong ion difference (SID) and the composition of intravascular fluids that are administered. (biomedcentral.com)
  • This study aimed to explore the role of CPB in the development of acidosis by comparing changes in hydrogen ion concentration ([H + ]) and electrolytes in patients undergoing on- and off-pump coronary artery bypass graft (CABG) surgery. (biomedcentral.com)
  • Because increased sodium in the tubules increases hydrogen ion loss at the same time as potassium, diuretics may also induce a hypokalaemic metabolic alkalosis. (thefreedictionary.com)
  • This causes decreased circulating hydrogen ion concentration, and increased pH (alkalosis). (wikipedia.org)
  • In the monomer state, sodium transport is blocked, the orange pore does not permit ion. (eurekalert.org)
  • KR2 was shown to selectively transport a particular kind of particles -- sodium ions -- outside the cell. (eurekalert.org)
  • Calculate the hydrogen ion concentration, in moles per liter, for solutions with each of the following pOH values. (bartleby.com)
  • A substance that yields hydrogen ions when dissolved in water. (thefreedictionary.com)
  • This is still just diffusion because during diffusion a substance is moving from areas of high concentration to areas of low concentration, so by measuring the rate at which a substance is becoming concentrated in the area of low concentration, you are measuring the rate of diffusion. (enotes.com)
  • The higher the concentration of a substance in relation to its surroundings, the higher the rate of diffusion. (enotes.com)
  • Ammonium-based fertilizers release hydrogen when oxidized to form nitrate, contibuting to soil acidity. (osu.edu)
  • The hydrogen ion concentration in the lesions of experimental pneumococcus infection has been estimated directly by pH determinations on exudates from living animals. (rupress.org)
  • For indirect evidence of an increase in hydrogen ion concentration within the lesions, the difference in sugar content between exudate and blood from animals with pneumococcus infection has been measured. (rupress.org)
  • With sanguinous exudate from the consolidated lungs of dogs with experimental pneumococcus pneumonia, the findings were not always consistent, but usually there was either direct or indirect evidence of increased hydrogen ion concentration. (rupress.org)
  • The hydrogen ion concentrations in exudate from dermal pneumococcus infection in rabbits varied between pH 6.87 and 6.66 but were not always proportional to the difference in sugar concentrations between the exudate and blood. (rupress.org)
  • While these hydrogen ion concentrations are similar to those attained in the pneumonic exudate from dogs, they are of lesser magnitude than those which Takahashi (3) has described in the pus of secondary empyema due to the pneumococcus. (rupress.org)
  • Effect of soil pH (Hydrogen and hydroxyl ions concentration) on the lifecycle of the Tunga penetrans. (ac.ke)
  • Keivoro P, Oyieke F, Ochanda H, Ngunjiri J. "Effect of soil pH (Hydrogen and hydroxyl ions concentration) on the lifecycle of the Tunga penetrans. (ac.ke)
  • Even with exposure of dental amalgam to relatively high HP concentration (38%), released Hg did not exceed the maximum acceptable limit. (bvsalud.org)
  • Having a relatively high concentration of hydrogen ions. (thefreedictionary.com)
  • The pH of seawater has decreased by 0.1 since the beginning of the industrial era, corresponding to a 26 per cent increase in hydrogen ion concentration. (thefreedictionary.com)
  • Users whose wastewater exceeds the concentrations for any one of these parameters shall be in Category B. (ecode360.com)
  • Wastewater with concentrations of BOD no greater than 250 mg/l, total suspended solids (TSS) no greater than 200 mg/l, and phosphorus (P) no greater than eight milligrams per liter (mg/l). (ecode360.com)
  • Wastewater which has a pollutant concentration greater than that defined for domestic strength waste and not otherwise classified as an incompatible waste. (ecode360.com)
  • Because the normal excised cæca maintain a definite hydrogen ion concentration and change their internal environment toward that as an optimum during life, there exists a regulatory process which is an important vital function. (rupress.org)
  • With a definite concentration of gelatin a less firm jelly is obtained as the amount of lemon juice is increased. (chestofbooks.com)