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THE SINGLE REPLACEMENT LAB OF IRON REPLACING COPPER IN A
COPPER (II) CHLORIDE SOLUTION
DAY I Read thru procedure and create a data table for the data that needs to be
recorded
1. WITH A PERMANENT MARKER WRITE THE NAMES AND HOUR OF THE
PEOPLE IN YOUR GROUP ON A CLEAN BABY FOOD JAR
2. MASS THE BABY FOOD JAR ON THE ANALYTICAL BALANCE NEXT DOOR AND
RECORD THE MASS
3. ADD around 7.50 GRAMS OF COPPER (II) CHLORIDE TO THE BABY FOOD JAR
AND RECORD ACTUAL MASS OF COPPER (II) CHLORIDE
4. ADD 50.0 mL OF WATER TO THE BABY FOOD JAR
5. WITH A SPOON OR STIRRING ROD, STIR THE SOLUTION UNTIL ALL THE
COPPER (II) CHLORIDE DISSOLVES
RECORD INITIAL OBSERVATIONS
6. TAKE A PIECE OF STEEL WOOL AND POLISH AN IRON NAIL. NO RUST!!!!
7. MASS THE NAIL ON THE ANALYTICAL BALANCE NEXT DOOR AND RECORD
THE MASS
8. PLACE THE POLISHED NAIL (HEAD FIRST) INTO THE BABY FOOD JAR
CONTAINING THE SOLUTION OF COPPER II CHLORIDE
LET THIS SIT FOR TWO DAYS
Create an observation table and record observations for day 1
DAY 2
1. WITH FORCEPS, PULL OUT THE REMAINDER OF THE IRON NAIL AND WASH
OFF ANY COPPER ON THE NAIL USING A WASH BOTTLE. ALL COPPER MADE
NEEDS TO BE IN THE BABY FOOD JAR!!!!
2. PLACE NAILS ON A LABELED PAPER TOWEL WITH YOUR NAMES AND HOUR
3. SIPHON OFF THE SOLUTION OF IRON II CHLORIDE AND PUT IN THE SINK
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BE CAREFUL NOT TO LOOSE ANY COPPER
4. ADD 25 mL OF HCL TO THE BABY FOOD JAR TO WASH THE COPPER
5. SIPHON OFF THE ACID AND PUT INTO THE SINK
6. WASH THE COPPER WITH 25.0 mL DISTILLED WATER THEN SIPHON OFF THE
WATER
7. PLACE BABY FOOD JAR WITH THE COPPER IN A DRYING OVEN
8. DRY FOR ONE OR TWO DAYS
DAY 3
1. WEIGH THE NAIL AND RECORD THE MASS
2. WEIGH THE BABY FOOD JAR WITH THE COPPER AND RECORD THE MASS
SCRAP THE COPPER OUT OF THE JAR WITH A SPATULA AND PLACE INTO A
BAGGIE OR THE GARBAGE CAN
BABY FOOD JAR NEEDS TO BE GIVEN BACK TO MRS. MALKMUS
DO CALCULATIONS!
WRITE A BALANCED CHEMICAL EQUATION
1. CALCULATE THE NUMBER OF GRAMS OF IRON NAIL USED
2. CALCULATE THE NUMBER OF MOLES OF IRON USED
3. CONVERT THE MOLES OF IRON TO MOLES OF COPPER USING
COEFFICIENTS
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4. CONVERT MOLES OF COPPER TO GRAMS OF COPPER. THIS IS CALLED
YOUR THEORETICAL YIELD. ( HOW MUCH YOU SHOULD HAVE MADE)
5. USING YOUR DATA: CALCULATE THE NUMBER OF GRAMS OF COPPER
PRODUCED. THIS IS CALLED YOUR EXPERIMENTAL YIELD
6. % YIELD= EXPERIMENTAL YIELD OF COPPER/ THEORETICAL YIELD OF
COPPER