Measure 55 mL of 40% ethanol Place 50 mL of ethanol in your distilling flask taking care that no liquid enters the side arm. Place the remaining 5 mL of ethanol in a test tube and set aside for procedure 2. Add a few marble or porcelain chips to the distilling flask to prevent bumping. Bumping is a term given to irregular boiling Assemble the rest of the apparatus for a simple distillation set-up. You may ask assistance from your instructor Cover the top of the distilling flask with a cork fitted with a thermom
Measure 55 mL of 40% ethanol Place 50 mL of ethanol in your distilling flask taking care that no liquid enters the side arm. Place the remaining 5 mL of ethanol in a test tube and set aside for procedure 2. Add a few marble or porcelain chips to the distilling flask to prevent bumping. Bumping is a term given to irregular boiling Assemble the rest of the apparatus for a simple distillation set-up. You may ask assistance from your instructor Cover the top of the distilling flask with a cork fitted with a thermom
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Fractional distillation
- Measure 55 mL of 40% ethanol
- Place 50 mL of ethanol in your distilling flask taking care that no liquid enters the side arm.
- Place the remaining 5 mL of ethanol in a test tube and set aside for procedure 2.
- Add a few marble or porcelain chips to the distilling flask to prevent bumping. Bumping is a term given to irregular boiling
- Assemble the rest of the apparatus for a simple distillation set-up. You may ask assistance from your instructor
- Cover the top of the distilling flask with a cork fitted with a thermometer. Make sure that the tip of the thermometer bulb is just below the side arm of the distillation flask
- Check all connections for tightness
- Heat the contents of the flask to boiling. Adjust the flame when the sample is already boiling. Make sure that it does not boil to dryness.
- Note the temperature of the first drop.
- Collect 60 drops of distillate per test tube. You will need 5 test tubes, thus five fractions are to be collected.
- For every test tube collected, take note of the temperature reading in your thermometer
- What is the expected temperature range of the first five fractions? Explain your answer.
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