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ACIDS and BASES
Properties of Acids
Properties of Bases
Naming Acids and Bases
For Acids We can use Table K to help us with naming
Acids are polar covalent and will give off hydrogen ions
Two types of acids exist
Binary Acids
Contain Hydrogen and 1 other (non-metal) element
All Binary acids begin with the prefix HYDROAll Binary acids end with –ic acidExample:HCl will be named:HYDROchlorIC acid
Ternary Acids
Give away H+ ions when dissolved in waterFeature Oxygen containing polyatomic ions
with Hydrogen NO3 SO4
If the Polyatomic ends with (ate) we call this an IC ACID
Example: H2SO4SO4 = SulfateSo Acid is Sulfuric Acid
Naming Continued
If the polyatomic ends with ITE we name this an OUS acid.
Example:H2SO3 Would be named: Sulfurous Acid Notice that in all cases NO HYDRO is used to
name a ternary acid. Most can be found in Table K
Naming Bases
Steps to Follow
Bases are usually ionic compounds (Metal and non-metal) that release OH- ions in solution.
Consist of a group 1 or 2 metal with hydroxide Therefore we just follow regular naming rules
for ionic compounds when naming mostNaOH consists of sodium and hydroxideName: Sodium HydroxideMetal keeps its name, and polyatomic OH ions
keep theirs as well. Table L gives a list of common bases and names
The Nature of the Hydrogen Ion
Has No Electron when it is ionized (H+)So it looks for something to bind to for
stabilityIn water it attaches itself to the water
molecule and forms an H3O+ ion (hydronium)
Creates an ion complex with acid like properties
This is why you can indicate the presence of an acid with either the H+ ion or the H3O+ ion
Illustration of Hydronium Ion
Nature of the Hydroxide Ion
OH- is what makes many bases basicGiven off when a basic compound is placed
into waterThe more OH- (hydroxide ions) that you
release in water, the stronger you are in terms of base strength (higher pH 10-14)
If H+ ions are present, OH- ions will bind with it to form water (basis of neutralization)