pH: a mathematical measure of hydrogen ions and hydroxide groups in a solution.
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Transcript of pH: a mathematical measure of hydrogen ions and hydroxide groups in a solution.
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pH: a mathematical measure of hydrogen ions and hydroxide groups in a solution
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A solution is “acidic” if the pH is less than 7
A solution is “basic” if the pH is more than 7
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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
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Basic
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Pure distilled 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 quality
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Contain Hydrogen Ions H+
Always willing to give a Hydrogen ion
Characteristics of Acids:Sour tasteConduct ElectricityRed on pH paperBurn skin
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Contain OH- groups / Hydroxides
Always willing to accept a hydrogen ion
CharacteristicsSlippery FeelingConduct Electricity Blue on pH paperBurn skin
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When an acid and a base react, this is called a neutralization.
The acid and the base balance each other out and move towards neutral (think average).
The byproduct of neutralization is always water and any type of salt.
H+ + OH- H20
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Examples:Strong Acid + Weak Base = Water and Acidic
Salt
Weak Acid + Strong Base = Water and Basic Salt
Strong Acid + Strong Base = Water and Neutral Salt
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1) Ammonia 2) Milk3) Vinegar4) Lemon juice5) Milk of Magnesia6) Hydrochloric Acid7) Rubbing Alcohol8) Bleach9) Tap Water
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