1. Water and ph Done by: Rashid Khalid Alneaimi Class: 11 - 06

2. First of all what is pH? pH is a measure of the acidity or basicity of a solution pH is a measure of the acidity or basicity of a solutionaciditybasicitysolutionaciditybasicitysolution Pure water is said to be neutral, with a pH close to 7.0 at 25 °C Pure water is said to be neutral, with a pH close to 7.0 at 25 °C°C

3. Here is some typical ph value

4. What affects water pH? Local geology Local geology Soil conditions Soil conditions Surrounding vegetation Surrounding vegetation Mining activities Mining activities Industry runoff/water pollution Industry runoff/water pollution Other human activities near water body Other human activities near water body PH of rainwater and up-wind air pollution sources PH of rainwater and up-wind air pollution sources

5. How do we measure the ph? pH meter pH Paper

6. 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. 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.

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