Powers of Ten and pH

How does this relate to pH? The numbers on the pH scale run from 0 to 14. Substances with lower pH's have much much more hydrogen, or H+, than substances with higher pH's. For example:

-Vinegar, with a pH of 3, has ten times more H+ than lemon juice, with a pH of 4.



-Lemon juice, with a pH of 4, has ten times more H+ than aspirin water, with a pH of 5.



-Aspirin water, with a pH of 5, has ten times more H+ than milk, with a pH of 6.



Vinegar has 10 X 10 X 10 or 1,000 times more H+ than milk. That's a lot! In other words, every notch down the pH scale has ten times the amount of hydrogen as the notch above it. See the table below for more details.

pH Scale Concentration of H+ Acid, Base, or Neutral
0 1 acid
1 0.1 acid
2 0.01 acid
3 0.001 acid
4 0.0001 acid
5 0.00001 acid
6 0.000001 acid
7 0.0000001 neutral
8 0.00000001 base
9 0.000000001 base
10 0.0000000001 base
11 0.00000000001 base
12 0.000000000001 base
13 0.0000000000001 base
14 0.00000000000001 base

Powers of Ten 

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