HAc PrOH PrAc H2O

1
HAc PrOH ? PrAc H2O
2
HAc PrOH ? PrAc H2O
Ci
Ci
0
0
I
C
X
X
-X
-X
Ci-X
E
Ci-X
X
X
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EQUIVALENT Ci IS PREPARED ON PAGE 314.
MEASURED BY TITRATION.
HAc NaOH ? NaAc H2O
(Ci - X) IS MEASURED BY TITRATION NEXT WEEK.
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LAB OVERVIEW

• WEEK 1 CHOICE I
• PART A
• PART B (MODIFIED)
• WEEK 2 CHOICE I
• PART C

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EXPERIMENT 26WEEK 1

• PART A (PAGE 314)
• MEASURE OUT MATERIAL
• 2. DETERMINE INITIAL CONCENTRATIONS BY TITRATION.

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HAc PrOH ? PrAc H2O
H2SO4 IS USED AS CATALYST IT WILL CONSUME EXTRA
NaOH NEXT WEEK BLANK TITRATION THIS WEEK
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BLANK TITRATION THIS WEEK
PURPOSE FIND HOW MUCH NaOH IS CONSUMED BY
H2SO4.
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• PROCEDURE
• PLACE 14mL 19mL - 2mL 31mL DISTILLED
  WATER
• IN A 150-mL BEAKER, ADD EXACTLY 10 DROPS OF 6 M
• H2SO4.
• 2) PIPET 1.00 mL OF THIS SOLUTION INTO A 250 mL
  FLASK
• CONTAINING 25 mL DISTILLED WATER.
• 3) ADD 3 DROPS OF PHENOLPHTHALEIN. TITRATE WITH
• NaOH SOLUTION.
• 4) REPEAT FOR A SECOND TRIAL.

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EXPERIMENT 26WEEK 1

• PART B
• 1. DETERMINE CATALYST CORRECTION
• DO NOT USE PROCEDURE IN LAB MANUAL
• DO USE BLANK PROCEDURE JUST DESCRIBED
• 2. ADD 10 DROPS OF CATALYST, GENTLY SWIRL.
• 3. SEAL REACTION VESSEL.

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EXPERIMENT 26KEYS TO SUCCESS

• CLEAN DRY ALL GLASSWARE
• USE 125 mL FLASK AS REACTION VESSEL
• USE 25 mL GRADUATED CYLINDER TO MEASURE REACTANTS
• ADD CATALYST AS LAST STEP
• STOPPER 125 mL FLASK TIGHTLY

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(No Transcript)
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EXPERIMENT 26WEEK 2

• PART C
• 1. DETERMINE EQUILIBRIUM CONCENTRATIONS
• 2. CALCULATE K