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 pH: a measure of the acidity or basicity of an aqueous solution  The measure of hydrogen ions (these are positively charged)

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Presentation on theme: " pH: a measure of the acidity or basicity of an aqueous solution  The measure of hydrogen ions (these are positively charged)"— Presentation transcript:

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2  pH: a measure of the acidity or basicity of an aqueous solution  The measure of hydrogen ions (these are positively charged)

3  A solution is “acidic” if the pH is less than 7  A solution is “basic” if the pH is more than 7

4  pH scale- measures how acidic, basic, or neutral a substance is  Ranges from 0-14  pH of 7= neutral  pH of less than 7= acidic  pH of more than 7= basic

5 Basic

6  Pure water is neutral (pH=7)  When chemicals are mixed with water, the mixture can be acidic or basic  The pH of a sample of water determines its health and solubility

7  Ex: vinegar and lemon juice  High concentration of H ions  Become more acidic when added to water

8  Ex: ammonia and baking soda  Low concentration of H ions  Concentration of H ions is reduced when added to water

9 1) Ammonia 2) Distilled water 3) Hydrochloric acid 4) Lemon juice 5) Milk 6) Rubbing alcohol 7) Soda 8) Sodium Hydroxide 9) Vinegar

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