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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)
A solution is “acidic” if the pH is less than 7
A solution is “basic” if the pH is more than 7
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
Basic
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
Ex: vinegar and lemon juice
High concentration of H ions
Become more acidic when added to water
Ex: ammonia and baking soda
Low concentration of H ions
Concentration of H ions is reduced when added to water
1) Ammonia 2) Distilled water3) Hydrochloric acid4) Lemon juice5) Milk6) Rubbing alcohol7) Soda8) Sodium Hydroxide9) Vinegar