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3_Smith_David(Lucas) - David(Luke Smith CHE 111-009 Lab...

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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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