How Much Ammonia is in the Cleaning Solution?
All sections
--
Goal,
Introduction, Procedure, Raw Data, Calculations, Results,
Discussion,
Conclusion
•
Introduction
--
Principle of
acid
--
base
titration,
use of indicators, end
--
point.
•
Procedure
--
Write in your own words (third person, past tense
narrative
) what
you did in lab.
•
Raw data
--
Tabulated.
•
L
abeled tables that makes clear what is what
(initial vol, final vol, avg vol)
•
Remember to include
correct
units
•
One table for each titrat
ion (HCl/NaOH and HCl/Cleaning Soln)
•
Only measurements that were collected
•
Final results do not go in raw data table
s! (e.g., HCl trial and average
concentrations, ammonia concentrations)
•
Calculations:
One representative calculation for each type
•
F
inding
the molarity of HCl
•
F
inding
the molarity of ammonia for diluted and then undiluted soln
•
Include formula
and the numbers you plugged in
•
Use either an equation editor or hand
--
write (do not ty
pe a description of
calculation)
•
Box final answers for clarity
•
Results:
One bullet point: Original ammonia soln
concentration (not the diluted
soln)
•
Discussion:
Possible sources of error (not
human
mistakes!)
,
Are the results
reliable? Why
or why not?
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