what does ph measure
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pH pH. The pH of a solution is a measure of the molar concentration of hydrogen ions in the solution and as such is a measure of the acidity or basicity of the solution. The letters pH stand for power of hydrogen and the numerical value is defined as the negative base 10 logarithm of the molar concentration of hydrogen ions.
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- Photo Credit Digital Vision./Digital Vision/Getty Images. The acidity of foods, or other substances, are measured by their pH value -- their place on a 14-point pH scale. Acidic substances have a low pH -- the lower the pH, the more acidic -- while neutral and basic substances have higher pH levels of 7 or above.
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PH PH, quantitative measure of the acidity or basicity of aqueous or other liquid solutions. The term, widely used in chemistry, biology, and agronomy, translates the values of the concentration of the hydrogen ion—which ordinarily ranges between about 1 and 10 −14 gram-equivalents per litre
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pH The pH of a solution is a measure of the molar concentration of hydrogen ions in the solution and as such is a measure of the acidity or basicity of the solution.
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Top rated pH Meter. A pH meter, also called a pH tester, measures the acidity and alkalinity of a liquid or other substance, on a scale with a range of 0 to 14, where 7 is neutral, 8 to 14 alkaline, and 0 to 6 acidic. pH meters have varying range, resolution, and accuracy.
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PH PH, quantitative measure of the acidity or basicity of aqueous or other liquid solutions. The term, widely used in chemistry, biology, and agronomy, translates the values of the concentration of the hydrogen ion—which ordinarily ranges between about 1 and 10 gram-equivalents per litre—into numbers between 0 and 14.
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- A pH meter. A pH Meter is a device used for potentiometrically measuring the pH, which is either the concentration or the activity of hydrogen ions, of an aqueous solution. It usually has a glass electrode plus a calomel reference electrode, or a combination electrode.
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Measuring pH with Litmus Paper Indicators are used to measure the pH of a substance. Often plant extracts will change colour if exposed to acidic or basic conditions and can therefore be used to indicate if a substance is an acid or base. Litmus is a pigment from a plant that is red under acidic conditions and blue under basic conditions.
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Balancing Act: Why pH is Crucial to Health What we call pH is short for the potential of hydrogen. It is a measure of the acidity or alkalinity of our body’s fluids and tissues. It is measured on a scale from 0 to 14. The more acidic a solution is, the lower its pH. The more alkaline, the higher the number is. A pH of 7 is perfectly neutral.
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- The Simple Definition. pH is a logarithmic measure of hydrogen ion concentration, originally defined by Danish biochemist S ren Peter Lauritz S rensen in 1909 [ 1 ]. pH = -log[H+]. where log is a base-10 logarithm and [H+] is the concentration of hydrogen ions in moles per liter of solution.
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How do pH probes work? It can generate voltage depending on Hydrogen ion (H+) concentration. Acidic solution has more Hydrogen ion concentration than alkaline solution. pH probes measure pH by measuring the voltage or potential difference of the solution in which it is dipped.
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pH Definition and Equation in Chemistry pH Definition: pH is a measure of hydrogen ion concentration; a measure of the acidity or alkalinity of a solution. Aqueous solutions at 25°C with a pH less than seven are acidic, while those with a pH greater than seven are basic or alkaline.
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- pH - (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); pH scale.
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ph pH. A scale which gives a measure of the acidity of an aqueous solution. A neutral solution has a pH of 7; an acidic solution has a lower value, and an alkaline solution a higher value.
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What is the pH? PH is short for the power of Hydrogen. It's the measure of acidity or alkalinity in a solution. In pure water at 77°F, The hydrogen ions are equal to the concentration of hyd … roxide ions. This is the neutral marking and means the pH level is 7.0.
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pH : a measure of acidity and alkalinity of a solution that is a number on a scale on which a value of 7 represents neutrality and lower numbers indicate increasing acidity and higher numbers increasing alkalinity and on which each unit of change represents a tenfold change in acidity or alkalinity and that is the negative logarithm of the effective hydrogen-ion concentration or hydrogen-ion activity in gram equivalents per liter of the solution; also: the condition represented by a pH number
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What Is The Average Weight of High school Freshman Football player? (specifically corner back)? Report Abuse. 110 is light for a freshman football player. I would say average is probably 130-170. But it depend alot on your school and your program. Some High School Freshman teams are alot more intense then others.eport Abuse. 110 is light for a freshman football player. I would say average is probably 130-170. But it depend alot on your school and your program. Some High School Freshman teams are alot more intense then others.
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pH Definition pH Definition. A common pH definition is: a logarithmic scale, from 1 to 14, used to describe the acidity or alkalinity of a solution. Blood in the human body should be close to 7.4 on the pH scale. A pH level of less than 7 indicates an acidic solution while a pH greater than 7 indicates an alkaline solution. 7 is the pH level of distilled water.
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pH -- Water properties pH: Definition and measurement units. pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.Hs less than 7 are acidic while pHs greater than 7 are alkaline (basic). Normal rainfall has a pH of about 5.6—slightly acidic due to carbon dioxide gas from the atmosphere. You can see that acid rain can be very acidic, and it can affect the environment in a negative way.
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pH  (chemistry) pH (chemistry) 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)
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The Colours & Chemistry of pH Indicators In a simplistic sense, it measures how acidic or alkaline a substance is – however, what the pH scale actually is is a logarithmic scale for measuring the concentration of hydrogen ions in a solution.
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Best PH and TDS/EC Levels For Cannabis Plants The pH scale essentially measures the acidity and alkalinity levels in water. “pH” is an acronym for the potential (p) of the existence of the hydrogen ion (H+) in the water. The scale runs from 1 to 14, meaning that a pH of 7.0 has an equal balance between hydrogen ions (H+) and hydroxyl ions (OH-).
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Do It Yourself Soil pH Test Technically, pH means potential hydrogen and is a measure of how many hydrogen ions are in a substance. 1  For a gardener's purpose, it is a measure of how acidic (sour) or alkaline (sweet) something is. We generally use it to test our soil, but the pH of the water you use on your garden also affects their growth.
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pH in the Environment Drinking Water Treatment System for pH Problems. pH is one of the most common water quality tests performed. pH indicates the sample's acidity but is actually a measurement of the potential activity of hydrogen ions (H+) in the sample. pH measurements run on a scale from 0 to 14, with 7.0 considered neutral. Solutions with a pH below 7.0 are considered acids.