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Acids and Bases
Webquest
NAME: __________________________
Use this link to answer the following questions:
http://www.files.chem.vt.edu/RVGS/ACT/notes/Notes_on_acids_and_bases.html
1.)
List the metals that acids react with to form H2
gas:___________________________________
2.)When acids react with
react with
compounds containing CO32- what products are
formed?________________________________________________
3.)Acids turn litmus ________________ .
4.)Bases turn litmus _______________ .
5.) Bases react with most cations to
precipitate _________________________.
6.) How can pH be determined
experimentally? __________________________________________ .
7.)List the six strong acids:
___________________________________________________________ .
8.)Why do we use a double arrow
in( ↔ ) the dissociation equation for a
weak acid?
_________________________________________________________________________________
.
9.) Why is
only one arrow ( →
) required for the dissociation of a strong acid?
_____________________________________________________________________ .
10.)
List the 3 scenarios for a substance being classified as a weak acid:
a.) _______________________________________________________________ .
b.)________________________________________________________________ .
c.) _______________________________________________________________ .
11.)
Describe strong bases: ______________________________________________ .
12.)
Which are the strong bases?__________________________________________________
.
13.)
How many moles of OH ions are produced from
the hydroxides of Group II metals for
every mole of base that dissociates? _________________ .
14.) Give the general equation for the
reaction of a weak base with water:
_____________________________________________________________________
Use this link to answer the
following questions:
http://www.wwnorton.com/college/chemistry/gilbert2/tutorials/interface.asp?chapter=chapter_16&folder=acid_rain
15.) Rain that has a very low pH is called
____________________________ .
16.) Natural rainwater has a pH of
______________ .
17.) Sulfur dioxide reacts with
atmospheric oxygen to form ______________ .
18.) Name the two acids in pollution that
make rain acidic: _____________________ .
19.) Fish in a lake will die if the pH
drops below _____________ .
Use this link to answer the
following questions:
http://www.wwnorton.com/college/chemistry/gilbert2/tutorials/interface.asp?chapter=chapter_16&folder=strong_titrations
20.) A titration is the
___________________________________________________ .
21.) The solution of known concentration
is called the _________________________ .
22.) The initial volume is read from the
bottom of the _________________________ .
23.) The equivalence point of a titration
is when______________________________ .
24.) The course of the reaction during a
titration can be followed by plotting the pH on a
_________________________________ .
25.) The pH of the solution at the
equivalence point is determined by ________________________________________ .
26.) What is an indicator?
______________________________________________ .
27.) What color is methyl red at pH = 8?
______________ .
28.) In acidic solutions
________________________ is colorless.
29.) When base is added, phenolphthalein
will remain colorless until the pH = _____ .
30.) At the equivalence point of the
titration, the color of the solution will be _________________________ .
1.)
Normality:
a.
Give a definition of normality.
b.
How does normality relate to molarity?
c.
Give a formula for this relationship.
d.
How is this used in neutralization reactions?
Use these links to answer above
questions:
Molarity, Molality and Normality (EnvironmentalChemistry.com)
(http://environmentalchemistry.com/yogi/chemistry/MolarityMolalityNormality.html)
Concentration - Wikipedia, the free encyclopedia
(http://en.wikipedia.org/wiki/Concentration)
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