pH Scale Illustration With Examples
pH Scale Illustration With ExamplespH Scale Illustration With ExamplespH Scale Illustration With Examples
pH Scale Illustration With Examples


What Is the pH Scale?
Measurement of Acidity & Alkalinity 



Universal pH indicator paper
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What Is an Acid?
An acid is any ionic compound that releases hydrogen ions (H+) in solution. Ionic compounds are molecules held together by ionic chemical bonds that result from the attraction of oppositely charged atoms, called ions.

Article Summary: The pH scale is a measurement of the acidity or alkalinity of a solution. To understand the scale, it is important to first understand what acids and bases are.

Acids, Bases, Buffers, and the pH Scale



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Universal pH indicator paperUniversal pH indicator paper
Universal pH indicator paperUniversal pH indicator paperUniversal pH indicator paper
Universal pH indicator paperUniversal pH indicator paperUniversal pH indicator paperUniversal pH indicator paper
Universal pH indicator paperUniversal pH indicator paperUniversal pH indicator paper
Universal pH indicator paperUniversal pH indicator paper
Universal pH indicator paper
Universal pH indicator paperUniversal pH indicator paper
SPO VIRTUAL CLASSROOMS
Interactive pH Scale Simulation
 UNIVERSITY OF COLORADO
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 hydronium ions in solution. Switch between logarithmic and linear scales. 
Must have updated version of Java to run simulation.
Instructor's Corner
Weak acids release fewer hydrogen ions and have a sour taste. Strong acids release more hydrogen ions and are highly corrosive. The more hydrogen ions in the solution, the more acidic it is.

What Is a Base? 
Bases, also called alkaline substances, are compounds that release hydroxyl ions (OH-) in solution. Weak bases have a bitter taste (opposed to sour taste of acids and sweetness of aldehydes and ketones) and are slimy to the touch. The more hydroxyl ions in a solution, the more alkaline it is.

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Page last updated: 8/2015
Continued ... 
What Are Buffers?
Go to PAGE 2 >
CLASS NOTES 
from the free STEM 
education site 
Science Prof Online
Measurements
of pH
Acidity or alkalinity of a solution is measured by concentration of hydrogen ions (H+) versus hydroxyl ions (OH-) and is expressed as pH level, an exponential scale that ranges from 0 (very acidic) to 14 (very basic). 

Because the scale is logarithmic, a change of just one unit represents a tenfold change in H+ concentration. When the concentration of hydrogen ions (H+) equals the concentration of hydroxyl ions (OH-) a solution is neutral.

pH Scale Illustration With Examples