Web Results

en.wikipedia.org/wiki/PH

In chemistry, pH (potential of hydrogen) is a numeric scale used to specify the acidity or basicity of an aqueous solution. It is approximately the negative of the ...

chemistry.elmhurst.edu/vchembook/184ph.html

The pH scale measures how acidic or basic a substance is. The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 ...

www.edu.pe.ca/gulfshore/Archives/ACIDSBAS/scipage.htm

The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. If a pH is lower than 7 it indicates the solution is an acid. If it is above 7 it is a ...

www.sciencebuddies.org/science-fair-projects/references/acids-bases-the-ph-scale

In order to deal with these large numbers more easily, scientists use a logarithmic scale, the pH scale. Each one-unit change in the pH scale corresponds to a ...

www.parish-supply.com/ph-scale.aspx

A measure of the degree of the acidity or the alkalinity of a solution as measured on a scale (pH scale) of 0 to 14. The midpoint of 7.0 on the pH scale represents ...

phet.colorado.edu/en/simulation/ph-scale

Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Visualize the relative number of hydroxide ions and ...

www.brainpop.com/science/matterandchemistry/phscale

In this educational animated movie about Science learn about acids, bases, basic, alkaline, neutral, ions, buffers, and neutralization.

saylordotorg.github.io/text_introductory-chemistry/s16-06-the-ph-scale.html

As we have seen, [H +] and [OH ] values can be markedly different from one aqueous solution to another. So chemists defined a new scale that succinctly ...

www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_pre_2011/chemical_synthesis/acidsalkalisrev2.shtml

The pH scale. It is possible to tell if a solution is acidic or alkaline by using an indicator. An indicator is a substance which has different colours when it is in acidic ...