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DOUBLE REPLACEMENT
A LABORATORY EXAMINATION OF DOUBLE REPLACEMENT REACTION
Слайд 2SAFETY
GOGGLES
HAIR TIED BACK
APRONS
Слайд 3CHEMICAL THEORY
THERE ARE MANY TYPES DOUBLE REPLACEMENT REACTIONS, SUCH AS ACID-BASE
NEUTRALIZATION AND PRECIPITATION.
Слайд 4PRECIPITATE REACTIONS
THESE ARE REACTIONS IN WHICH AN INSOLUBLE SOLID IS FORMED
AND SETTLES OUT OF SOLUTION, THE PRECIPITATE.
Слайд 5EXAMPLE/FORM EQUATION
AB + CD ----> AD + CB
THE CATIONS “TRADE” PLACES
Слайд 6THE REACTION
WRITE THE BALANCED REACTION:
CaCl2(aq) + Na2CO3(aq) -----> 2NaCl(aq) + CaCO3(s)
Слайд 7MATERIALS
RINGSTAND/WIRE TRIANGLE
FUNNEL
# 1 WHATMAN FILTER PAPER
Слайд 8MATERIALS
ASSORTED BEAKERS
ASSORTED FLASKS
GLASS STIRRING ROD
DRYING OVEN
Слайд 9REAGENTS
Na2CO3 SODIUM CARBONATE
CaCl2 CALCIUM CHLORIDE
Слайд 10PROCEDURE
ADD 1 GRAM OF EACH “SALT” TO 20 mL OF WATER
IN TWO SEPARATE BEAKERS AND DISSOLVE, THEN MIX SOLUTIONS IN COMMON BEAKER
Слайд 11PROCEDURE CONTINUED
POUR THE CONTENTS OF THE BEAKER THROUGH THE FILTER PAPER
FUNNEL ASSEMBLY
Слайд 12MORE PROCEDURE
REMEMBER, PRE-MASS THE DRY FILTER PAPER BEFORE FILTERING
Слайд 13DATA AND CONCLUSIONS
CONSTRUCT A DATA TABLE
DESCRIBE WHY THE LAB RESULTS
OCCURRED IN CONCLUSION
CALCULATE THEORETICAL YIELD, THEN PERCENT YIELD AND PERCENT ERROR
Слайд 14TECHNICAL WRITING PORTFOLIO
WRITING FOR A SPECIFIC PURPOSE
NO FLOWERY PROSE, GET TO
THE POINT
MATH IS A LANGUAGE, CALCULATIONS ARE VITAL TO WRITEUP
Слайд 15PURPOSE
WRITING TO INFORM, MAKE A DECISION OR LEARN HOW TO DO
SOMETHING
Слайд 16AUDIENCE
TARGET A SPECIFIC GROUP
OUR GROUP IS MIXED AUDIENCE, IF YOU CAN
WRITE DIRECTIONS TO PUT A SWING SET TOGETHER YOU CAN WRITE ANYTHING
Слайд 17ORGANIZATION
WE WILL FOLLOW THE PROBLEM, CAUSE, SOLUTION FORMAT
THIS LENDS ITSELF TO
THE LABORATORY ORGANIZATION
Слайд 18WRITING
CHOOSE THE DETAIL, AMOUNT OF DESCRIPITION
GRAPHICS ENHANCE THE IMPACT OF A
PAPER
Слайд 19COMPONENTS
TITLE. TO THE POINT, DESCRIPTIVE OF THE LAB.
INTRODUCTION. STATES CLEARLY THE
QUESTION/PROBLEM AND WHY LAB WAS PERFORMED
EXPERIMENTAL DETAILS/RESULTS: EXPLAINS WHAT YOU DID AND WHY, AND LISTS RESULTS
Слайд 20MORE COMPONENTS
CONCLUSIONS & DISCUSSION ANALYZE THE RESULTS AND EXPLAIN WHAT HAPPENED
IN THE LAB
EXTENSIONS: “REAL WORLD” USES OF THIS REACTION AND LIME
Слайд 21STILL MORE COMPONENTS
ACKNOWLEDGMENTS. LIST WHO CONTRIBUTED TO THE COMPLETION OF THE
LAB
REFERENCES. LIST ANY TEXTS OR MATERIAL USED IN THE WRITING OF YOUR PAPER
Слайд 22NUTS & BOLTS
PAPER IN BLUE OR BLACK INK OR WORD PROCESSED
FRONT
OF PAPER ONLY
TITLE PAGE
DRAWINGS/ILLUSTRATIONS REQUIRED
GOALPOSTS, GOALPOSTS, GOALPOSTS
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