It measures acidity or alkalinity. The scale is logarithmic, and runs from 0 to 14. A pH of 7 indicates a neutral solution, while lower pH is acidic and higher pH is alkaline. Because the scale is logarithmic, a pH of 5 is ten times more acidic than a pH of 6. What pH literally measures is the concentration of H+ ions in a solution. pH stands for the French "pouvoir hydrogène," meaning "hydrogen potential."
pH is important for many things in biochemistry. Certain bodily fluids have a particular pH that aids their function, like highly acidic gastric acid. At the same time, the pH of the environment can have a significant effect on life, such as the harm caused by acid rain.
2006-10-24 07:18:10
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answer #1
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answered by DavidK93 7
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It's a measure of acidity based on the activity potential of H+ ions. See the reference for all the details. This is a key factor in figuring out what happens in a chemical reaction. It is also a good measure of the state of health of certain aspects of body chemistry.
2006-10-24 07:25:39
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answer #2
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answered by Frank N 7
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acidity. it's from 1-14. 7 is neutral. below 7 you have acids. above 7 you have bases. the lower the pH, the more acidic.
2006-10-24 07:21:10
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answer #3
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answered by lalalala 1
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acid
7 is neutral ( water)
the lower the ph, the more acid
the hight the ph, the more base it is
2006-10-24 07:18:50
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answer #4
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answered by papeche 5
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3. hydrogen ion concentration
2016-05-22 08:16:57
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answer #5
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answered by Anonymous
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acidity or alkalinity
2006-10-24 07:18:43
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answer #6
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answered by pknutson_sws 5
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pH=-log[H+]
2006-10-24 07:24:13
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answer #7
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answered by pixela007 2
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