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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?

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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