What does pH scale mean?

Definitions for pH scale
ph scale

This dictionary definitions page includes all the possible meanings, example usage and translations of the word pH scale.

Princeton's WordNet

  1. pH, pH scalenoun

    (from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure on a scale from 0 to 14 of the acidity or alkalinity of a solution (where 7 is neutral and greater than 7 is more basic and less than 7 is more acidic);

Wikipedia

  1. ph scale

    In chemistry, pH (), historically denoting "potential of hydrogen" (or "power of hydrogen"), is a scale used to specify the acidity or basicity of an aqueous solution. Acidic solutions (solutions with higher concentrations of H+ ions) are measured to have lower pH values than basic or alkaline solutions. The pH scale is logarithmic and inversely indicates the concentration of hydrogen ions in the solution. pH = − log ⁡ ( a H + ) = − log ⁡ ( [ H + ] / M ) {\displaystyle {\ce {pH}}=-\log(a_{\ce {H+}})=-\log([{\ce {H+}}]/{\ce {M}})} where M = mol dm−3. At 25 °C (77°F), solutions with a pH less than 7 are acidic, and solutions with a pH greater than 7 are basic. Solutions with a pH of 7 at this temperature are neutral (i.e. have the same concentration of H+ ions as OH− ions, i.e. the same as pure water). The neutral value of the pH depends on the temperature – being lower than 7 if the temperature increases above 25 °C. The pH value can be less than 0 for very concentrated strong acids, or greater than 14 for very concentrated strong bases.The pH scale is traceable to a set of standard solutions whose pH is established by international agreement. Primary pH standard values are determined using a concentration cell with transference, by measuring the potential difference between a hydrogen electrode and a standard electrode such as the silver chloride electrode. The pH of aqueous solutions can be measured with a glass electrode and a pH meter, or a color-changing indicator. Measurements of pH are important in chemistry, agronomy, medicine, water treatment, and many other applications.

ChatGPT

  1. ph scale

    The pH scale is a logarithmic scale, ranging from 0 to 14, used to measure the acidity or alkalinity of a solution. A pH of 7 is considered neutral, values below 7 indicate increased acidity, and values above 7 indicate increased alkalinity. Each unit represents a tenfold change in acidity or alkalinity. The pH scale is widely used in chemistry, biology, and environmental science.

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Numerology

  1. Chaldean Numerology

    The numerical value of pH scale in Chaldean Numerology is: 1

  2. Pythagorean Numerology

    The numerical value of pH scale in Pythagorean Numerology is: 1

Examples of pH scale in a Sentence

  1. Chris Hohn:

    Shockingly, in that six-year period, the nine members of the Board of management will have been paid around 400 million euros. That is corporate excess on an epic scale. Management has been rewarded for failure.

  2. Scott Salmon:

    It's not realistic to do that on a scale that would matter for a presidential election, and, frankly, you're probably going to get caught.

  3. Army Gen. Mark Milley:

    I will be happy when the appropriate time comes and in front of the proper committees and anybody else, through history and every -- I will stand by the intelligence I saw, that it was compelling, it was imminent, and it was very, very clear in scale, scope, did it exactly say who, what, when, where ? No, but he was planning, coordinating and synchronizing significant combat operations against Army Gen. Mark Milley military forces in the region and it was imminent.

  4. Andrew Schurer:

    The eruption injected a huge amount of sulphur dioxide into the stratosphere, which would have quickly spread across the world, oxidising to form sulphate aerosols, these volcanic aerosols reduce net shortwave radiation causing widespread, long lasting surface cooling. They also lead to a reduction in global rainfall, while wettening some dry regions and causing dynamic changes in the large-scale circulation of both ocean and atmosphere.

  5. Sir Henry Taylor:

    The art of living easily as to money is to pitch your scale of living one degree below your means.


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"pH scale." Definitions.net. STANDS4 LLC, 2024. Web. 24 Apr. 2024. <https://www.definitions.net/definition/pH+scale>.

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