Acids & Bases
Acids:
acids are sour tasting
Arrhenius acid: Any substance that, when dissolved
in water, increases the concentration of hydronium
ion (H3O+)
Bronsted-Lowry acid: A proton donor
Lewis acid: An electron acceptor
Bases:
bases are bitter tasting and slippery
Arrhenius base: Any substance that, when dissolved
in water, increases the concentration of hydroxide
ion (OH-)
Bronsted-Lowery base: A proton acceptor
Lewis acid: An electron donor
Acids & Bases
STRONG
_ completely ionized
_ strong electrolyte
_ ionic/very polar bonds
Strong Acids:
HClO4
H2SO4
HI
HBr
HCl
HNO3
vs
WEAK
_ partially ionized
_ weak electrolyte
_ some covalent bonds
Strong Bases:
LiOH
NaOH
KOH
Ca(OH)2
Sr(OH)2
Ba(OH)2
Objectives:
 To discover the strength of an acid.
 To identify the meaning of the titration.
 To find out the morality of hydrochloric acid in
the sample.
Procedure
1. Collect all the material that you need, in order to be
organized and not to forget something.
Procedure
2. Get about 10 ml of HCl to put it in 250 ml
Erlenmeyer flask with using pipette.
Procedure
3. add only two drops of phenolphthalein indicator. Read the
scale. Write down the reading.
Procedure
4. After that, add little drops of base to the acid to
hydrochloric acid with small amount of it. Record the reading.
Procedure
5. Stop when it become pink. Write down the reading in
the book.
Conclusion
In this experience I learned a technique called strong acid
titration with standardized strong base to perform the controlled
Act between a solution of known concentration, and a solution
of unknown concentration. Calibration is used to find the
specific solution acid ethic. Calibration work is added with strong
acid to strong base or vice versa.
Acid-base titration is the focus of acid or base exactly neutralizes
the acid or base with acid or base to focus information.
This allows for the quantitative analysis of the concentration of
acid or base solution is unknown. It makes use of the
neutralization reaction that occurs between acids and bases and
how acids and bases interact, if known formulas.