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BI-122 Biology
Water

H2O, dihydrogen oxide, or hydrogen hydroxide

General characteristics of Water:



Solutions




pH

solute
H+
solvent
H2O
[conc] pH
1 9,999,999 1:107 7.0

If there were more hydrogen ions, the solution would be more acidic:

H+ H2O [conc] pH
10 10,000,000 1:106 6.0
100 10,000,000 1:105 5.0
1,000 10,000,000 1:104 4.0
10,000 10,000,000 1:103 3.0

Similarly, pH values higher than 7, up to 13.0, are increasingly basic.

H+ H2O [conc] pH
0.1 10,000,000 1:108 8.0
0.01 10,000,000 1:109 9.0
0.001 10,000,000 1:1010 10.0
0.0001 10,000,000 1:1011 11.0
0.00001 10,000,000 1:1012 12.0
0.000001 10,000,000 1:1013 13.0



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revised 19 aug 2006