What is the difference
between acids and bases?
From the PHET Acid and Base Simulation
A neutral atom has the same number of protons and electrons.
Ions are atoms or molecules with + or – charges
because they either lost or gain electrons. See diagram below!
Neutral H atom compared to an
+
H
ion
Water molecules (aka H2O)
can break into H3O+ ions and OH- ions.
Water dissassociating into H3O+ and OH-
The concentration of H+ ions vs OH- ions.
Water is considered a neutral chemical because it has an
equal number of H+ ions and OH- ions.
Weak acid mixed with water
Strong Acid mixed with water
Weak Base mixed with water
Strong Basemixed with water
Strong Acid in Water
Strong Base in Water
Electricity is created from the flow of electrons.
Electrical Conductivity of a Weak Acid
Electrical Conductivity of a Strong Acid
Electricity is created from the flow of electrons.
Electrical Conductivity of a Weak Base
Electrical Conductivity of a Strong Base
Comparing the Concentrations of Acids
.001 Molarity
1.0 Molarity
Comparing the Concentrations of Bases
.01 Molarity
.1 Molarity
The End!