Water and ph Done by: Rashid Khalid AlneaimiClass: 11 - 06

First of all what is pH?

pH is a measure of the acidity or basicity of a solution

Pure water is said to be neutral, with a pH close to 7.0 at 25 °C

Here is some typical ph value

What affects water pH?

Local geology  Soil conditions Surrounding vegetation 

Mining activities 

Industry runoff/water pollution

Other human activities near water body

PH of rainwater and up-wind air pollution sources

How do we measure the ph?

pH meter

pH Paper

In general, water with a pH lower than 7 is considered acidic, and with a pH greater than 7, basic. The normal range for pH in surface water systems is 6.5 to 8.5 and for groundwater systems 6 to 8.5. Alkalinity is a measure of the capacity of the water to resist a change in pH that would tend to make the water more acidic.

The end Thank you for

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