ACIDS and
BASES
By : Niar Rehulina Perangin angin, M.Pd
You Should be able to:


State some of the important
characteristics of acids and bases



Difine the terms acid and bas...
The Characteristics
Acids

Bases

 Has a sour taste
 Has a bitter taste
 Can change the color
 Can change the
of certa...
 Arrhenius

Concept

 Bronsted-Lowry
 Lewis

Concept

Concept
Arrhenius Concept




Increases the
concentration of
hydronium ions
(H3O+)
Increase the
concentration of
hydroxide ion,
...
Bronsted-Lowry Concept
An Acid is a species
which can donate a
proton (a hydrogen
ion, H+) to a proton
acceptor

A base is...
Lewis Concept


An acid is a
species that can
accept a pair of
electrons



A base is a species
that can donate a
pair o...
QUIZ
Which ones of this statement below is
the characteristics of acids…..
a. The taste is Bitter
b. Change of the red Litmus b...
EXCELLENT
THANK YOU
FOR YOUR ATTENTION
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Acids and bases

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Acids and bases

  1. 1. ACIDS and BASES By : Niar Rehulina Perangin angin, M.Pd
  2. 2. You Should be able to:  State some of the important characteristics of acids and bases  Difine the terms acid and base  Discuss the concept of the ionization
  3. 3. The Characteristics Acids Bases  Has a sour taste  Has a bitter taste  Can change the color  Can change the of certain dyes color of certain dyes certain metals, to  Has a slimy or soapy produce hydrogen feeling gas  Can neutralize bases  Can neutralize acids  Can react with
  4. 4.  Arrhenius Concept  Bronsted-Lowry  Lewis Concept Concept
  5. 5. Arrhenius Concept   Increases the concentration of hydronium ions (H3O+) Increase the concentration of hydroxide ion, (OH-)  Acid H Cl + H2 O  H3 O+ + Cl- Base NH3 + H2 O NH4- + OH- Back
  6. 6. Bronsted-Lowry Concept An Acid is a species which can donate a proton (a hydrogen ion, H+) to a proton acceptor A base is a species which can accept a proton from a proton donor
  7. 7. Lewis Concept  An acid is a species that can accept a pair of electrons  A base is a species that can donate a pair of electrons
  8. 8. QUIZ
  9. 9. Which ones of this statement below is the characteristics of acids….. a. The taste is Bitter b. Change of the red Litmus becomes blue c. Can react with certain metals d. Has a slimy or soapy feeling e. The example is NaOH
  10. 10. EXCELLENT
  11. 11. THANK YOU FOR YOUR ATTENTION

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