Acids and Bases

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Calcium carbonate cylinder
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Get a pencil and paper and attempt to answer the questions
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1. Which of the following is
the best conductor of
electricity?
NaCl (s)
NaCl (aq)
C6H12O6 (s)
C6H12O6 (aq)
NaCl (aq)
2. Which solution is the best
conductor of electricity?
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0.1 M HNO3
0.1 M CH3COOH
0.1 M C6H12O6
0.1 M C2H5OH
3. What happens to the conductivity
of a solution if KCl is added to a
saturated solution of KCl?
4. In a 0.01 M solution of HCl, blue
litmus will do what?
5. In the below reaction, which
quantity would be considered the
proton doner?
HF + H2O
 H3O+
+ F-
6. The conjugate base of NH3 is
NO2 NO3 NH2 NH3
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7. A 0.1 M acid solution at 298 K
would conduct electricity best if the
acid had a Ka value
1 x 10-7
 1.7 x 10-2
 6.6 x 10-4
 1.8 x 10-5
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Pure water is similar to 1.0 M HCl in
that they both
Contain H3O+
 Are neutral to litmus
 Have a pH higher
than 7
 Are good conductors
of electricity
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According to the Bronsted-Lowry
theory, an acid is any species that
can . . .
When tested, a solution turns red
litmus to blue. This indicates that
the solution contains two types of
ion. Which ion is more abundant?
What will water become if it acts as
a base?
+
H3O
12. In the reaction below is water an
acid, a base, or both?
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H2O + H2O  H3O+ + OH-
BOTH
Which salt will hydrolyze in water to
create a basic solution?
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NaNO2
CaCl2
BaI2
MgSO4
What does this mean?
React each with water . .
If the product is a strong
base and a weak acid, it
will be a basic solution.
NaNO2 + H2O  NaOH + HNO2
Note the
How many mL of 1.0 M H SO are
is15 mL
neededmole
to exactlyratio
neutralize
of 2.0 M Ba(OH) ?
2:2
30-mL
2
2
4
As 50-mL of 0.1 M HCl is added to
100-mL of 0.1-M NaOH, the pH of
the NaOH will do what?
16. Write a chemical equation that
would represent a neutralization
reaction.
A water solution contains 0.50 moles
of HCl. How many moles KOH
should be needed to neutralize the
acid?
0.50 moles
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How many grams does that represent?
28.5-g
18. What is the pH of a solution if
the HYDROXIDE ion concentration
is 1 x 10-4 moles per liter?
10
What is the [H3O+] of a 0.001 M HCl
solution?
1.0 x
-3
10
20. Write the Ka equation for the
following reaction:
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HNO2 (aq) = H+ (aq) + NO2- (aq)
You find an unknown solution in the
lab
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What characteristics will it have if it is a base?
What characteristics will it have if it is an acid?
The chemical turns methyl orange a
dark red color.
22. What materials will you need if
you are going to do titration to see
what the concentration of the
chemical is?

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