David (Luke) Smith
CHE 111-009 Lab
Karimi Fariba
Matt Perry
10-4-11
Copper Salt Empirical Formula
Experiment #3 Copper Salt Empirical Formula
Goal of Lab
•
Learn how to do a gravity filtration
o
The method of choice to remove solid impurities from an organic liquid.
o
Gravity Filtration is advised if substance is hot, or saturated with one or
more reagents
o
Very useful and cheap method to separate mixtures
•
Determine the percent composition of a compound.
o
With the percent composition of each element in a compound, the
empirical formula can be determined.
•
Correctly determine the empirical formula of a compound
•
Learn more about hydrated compounds
o
Hydrated compounds can be manipulated by heating them up.
o
By dehydrating a substance, the water mass can be calculated
Waste
•
The liquid is disposed of the in aqueous waste container
•
Dried copper salt should be put in Copper Waster container
•
Copper should put in the bucket marked Copper Waster
•
Used aluminum is disposed in waste container Aluminum Waste
Safety
•
Wear safety goggles at all times
•
Wear gloves at all times
•
Handle solid reagents carefully to avoid harm.
Use brush to remove debris from
balance.
•
Wash hands before leaving the lab
With the data collected from the lab the empirical formula can be determined.
The
composition by mass must be determined in the laboratory.
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- Fall '11
- SOULT
- Chemistry, copper salt
-
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