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J-1
SAMPLE LABORATORY EXAMINATION
The following is an example of the types of questions that you might expect on the laboratory examination.
Answers are given on the last page. You should attempt to answer the questions first and then check your
answers.
You should review all of your laboratory reports and quizzes to prepare for the laboratory examination.
SAMPLE
CHEMISTRY 101.3
LABORATORY EXAMINATION
MULTIPLE CHOICE
1.
(Exp A) The balanced molecular equation for the formation of copper(II) carbonate from copper(II)
nitrate is:
a.
Cu(NO3)2
(aq)
+ Na2CO3
(aq)
CuCO3
(s)
+ 2 NaNO3
(aq)
b.
Cu(NO3)2
(aq)
+ H2CO3
(aq)
??
CuCO3
(s)
+ 2 HNO3
(aq)
c.
Cu(NO3)2
(aq)
+ CO2
(g)
+
2
1
O2
(g)
CuCO3
(s)
+ 2 NO3
-
(aq)
d.
Cu(NO3)2
(aq)
+ CuCO3
(s)
CuCO3
(s)
+ Cu(NO3)2
(aq)
e.
none of the above
2.
(Exp A) What volume of 0.550 M Na2CO3, sodium carbonate, would be required to react with 200
mL of a 0.393 M Cu(NO3)2 solution?
a.
29.5 mL
b.
14.3 mL
c.
143. mL
d.
2.95 mL
e.
9.72 mL
