Water sample analysis: pH
Lesson 16 / 18
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I can the describe how to test the pH of different water samples and suggest why they may differ in terms of dissolved substances.
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The pH of water samples can be determined using appropriate methods and/or instruments e.g pH meter.
pH data can be analysed to assess if water contains impurities.
Different substances dissolve in different types of water.
The substances that dissolve in different waters can affect the water's acidity or alkalinity (i.e. its pH).
Pure water is necessary for laboratory tests; it must be neutral (i.e. pH 7).
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