practice_exam_Molar Mass and Empirical Formula Practice Quiz

practice_exam_Molar Mass and Empirical Formula Practice...

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Unformatted text preview: Name:_______________________________________
 
 Quiz
Section:___________
 Quiz
3
 Question
1
 Calculate
the
molar
mass
of
the
following
compounds
to
the
 nearest
g/mol:
 H2O2
 
 
 Na2S2O3
 
 
 H2SO4
 (3
marks)
 Question
2
 Give
the
empirical
formula
of
the
following
compounds:
 
 C9H18
 
 
 CH3COOH
 
 
 Fe2O3
 (3
marks)
 Name:_______________________________________
 
 Quiz
Section:___________
 Question
3
 Calculate
the
Mass
%
of
each
element
within
acetic
acid
 (CH3COOH).
 How
much
carbon
would
be
present
in
a
sample
of
acetic
acid
 weighing
42.62g?
 Give
your
answer
to
three
significant
figures.
 (6
marks)
 ...
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This note was uploaded on 09/29/2011 for the course CHM 101 taught by Professor Ma during the Spring '11 term at Beacon FL.

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