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  2. pH - Wikipedia

    en.wikipedia.org/wiki/PH

    Water itself is a weak acid and a weak base, so its dissociation must be taken into account at high pH and low solute concentration (see Amphoterism). It dissociates according to the equilibrium 2 H 2 O ⇌ H 3 O + (aq) + OH − (aq) with a dissociation constant, K w defined as = [+] []

  3. Alkalinity - Wikipedia

    en.wikipedia.org/wiki/Alkalinity

    The lower the pH, the higher the concentration of bicarbonate will be. This shows how a lower pH can lead to higher alkalinity if the amount of bicarbonate produced is greater than the amount of H + remaining after the reaction. This is the case since the amount of acid in the rainwater is low.

  4. Weak base - Wikipedia

    en.wikipedia.org/wiki/Weak_base

    Bases yield solutions in which the hydrogen ion activity is lower than it is in pure water, i.e., the solution is said to have a pH greater than 7.0 at standard conditions, potentially as high as 14 (and even greater than 14 for some bases). The formula for pH is: = ⁡ [+]

  5. Estuarine acidification - Wikipedia

    en.wikipedia.org/wiki/Estuarine_acidification

    An estuary is defined as "a water passage where the tide meets a river current". The pH of estuaries is highly variable because of freshwater flow from rivers and groundwater, as well as primary productivity (exacerbated by nutrient loading) and coastal upwelling. Fresh water from rivers typically has a lower pH than ocean water (~7 compared to ...

  6. Buffer solution - Wikipedia

    en.wikipedia.org/wiki/Buffer_solution

    A buffer solution is a solution where the pH does not change significantly on dilution or if an acid or base is added at constant temperature. [1] Its pH changes very little when a small amount of strong acid or base is added to it. Buffer solutions are used as a means of keeping pH at a nearly constant value in a wide variety of chemical ...

  7. Are There Any Benefits to Drinking Alkaline Water? - AOL

    www.aol.com/benefits-drinking-alkaline-water...

    Human blood is slightly basic with a pH of 7.4. Alkaline water typically has a pH of 8 or 9, meaning it’s more basic than regular tap or bottled water, which can be neutral or slightly acidic ...

  8. Isoelectric point - Wikipedia

    en.wikipedia.org/wiki/Isoelectric_point

    The isoelectric point (pI, pH(I), IEP), is the pH at which a molecule carries no net electrical charge or is electrically neutral in the statistical mean. The standard nomenclature to represent the isoelectric point is pH(I). [1] However, pI is also used. [2] For brevity, this article uses pI.

  9. Acid strength - Wikipedia

    en.wikipedia.org/wiki/Acid_strength

    The pH of a simple solution of an acid in water is ... value is commonly performed by means of a ... Superacids are strong acids even in solvents of low ...

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