Acids and Bases
This interactive tutorial will take you through such concepts as dissociation, proton donors, proton acceptors, alkalinity, and more. So don’t be neutral — hop on the pH scales, touch all the bases, and don’t drop any acids!
Acid solutions have a sour or sharp taste and have a pH less than 7.
A strong acid has a very low pH (0-4) and a weak acid usually has a higher pH (3-6).
Bases or Alkalines
Bases have a flat taste and are slippery in an aqueous solution, with a pH greater than 7.
A strong base has a very high pH (11-14) while a weak base has a lower pH (8-10).
Zero on the pH scale is the strongest acid, while 14 is the strongest base. Water, which is neutral, has a pH value of 7.
As you move up on the scale, each value has ten times the amount of OH-; moving down the scale has ten times the H+. The values are measured in terms of moles/liter of hydrogen ions.
The pH scale is often colored with a red to blue gradient representing the colors from the litmus test.