The ph of pure water (h20) is 7 at 25 °c, but when exposed to the carbon dioxide in the atmosphere this equilibrium results in a ph of approximately 5.2 because co2 in the air dissolves in the water and forms carbonic acid.
What Is the Ph of Water?
The pH of water is a measure of the hydrogen ion concentration in the water. The higher the concentration of hydrogen ions, the more acidic the water is.
The lower the concentration of hydrogen ions, the more basic the water is. pH is a logarithmic scale, which means that each number on the scale is 10 times the previous number.
For example, a pH of 4 is 10 times more acidic than a pH of 5. The pH scale ranges from 0 to 14, with 7 being neutral. Anything below 7 is considered acidic, and anything above 7 is considered basic.
Water can have a pH that is either naturally occurring or man–made. Naturally occurring water is usually around a pH of 7, although it can be lower or higher depending on the source.
Man–made water, such as that found in swimming pools and hot tubs, can have a pH that is different from natural water. This is because chemicals are added to the water to change the pH.
The pH of water is important because it can affect the dissolution of minerals, the growth of aquatic plants, and the reproduction of aquatic animals. Water with a high pH can be corrosive to metal pipes, and water with a