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Boiling Point of Mixtures of Ethanol and Water

Boiling Point of Mixtures of Ethanol and Water. Group 18: Sanya Dhoundiyal, Jessica Chung and Erik Wolter. Ethanol. What is the relationship of increasing the proportion of water to ethanol on the boiling point of the resulting mixture?. Application.

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Boiling Point of Mixtures of Ethanol and Water

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  1. Boiling Point of Mixtures of Ethanol and Water Group 18: Sanya Dhoundiyal, Jessica Chung and Erik Wolter

  2. Ethanol

  3. What is the relationship of increasing the proportion of water to ethanol on the boiling point of the resulting mixture?

  4. Application • Production of moonshine (distillation) • Safety when using alcohol in cooking

  5. Variables

  6. Independent Variable Ratio of moles of water to moles of ethanol

  7. Dependent Variable Boiling point of mixture (°C)

  8. Controlled Variables • Pressure • Volume of ethanol and water • Uneven boiling

  9. Materials

  10. Procedure

  11. Setting Up the Three Way Flask and Reflux Condenser

  12. Results

  13. Qualitative Data

  14. Molar Ratios

  15. Data Analysis

  16. Conclusion

  17. Evaluation

  18. Heating • Heating from pot uneven • Heating of mixture in three way flask uneven • Solution • Electric heater(school does not have one)

  19. Impurities in Ethanol • Not “pure • Impurities existed in the Ethanol • Assumed that 5% remaining in Ethanol was water Solution • 99.6% ethanol

  20. Density • Densities were assumed to be that at STP Solution • Weigh the mass of added volumes

  21. Uneven Boiling • Whether the mixture is or is not homogenous

  22. Works Cited • "Elmo33: Measuring Volume." Elmo33: Measuring Volume. Web. 30 May 2012. <http://elmo33-elmo3.blogspot.com/2011/12/measuring-volume.html>. • "Graduated Cylinder - PP, Blue Printed Graduations." : Globe Scientific Inc.: Laboratory Plasticware, Laboratory Glassware and Laboratory Equipment Specialists. Web. 30 May 2012. <http://www.globescientific.com/graduated-cylinder-pp-blue-printed-graduations-p-2419.html>. • "Laboratory Retort Stand Kit." Laboratory Retort Stand Kit. Web. 30 May 2012. <http://www.rapidonline.com/Education/Laboratory-Retort-Stand-Kit-66646>. • "Pipette Products, Buy Pipette Products from Alibaba.com." Alibaba. Web. 30 May 2012. <http://www.alibaba.com/product-gs/51220572/Pipette.html>. • "Liebig." --- SciLabware. Web. 30 May 2012. <http://www.scilabware.com/Condensers/Liebig/p-29-150/>. • "A Problem Has Occurred." Spectrum Scientifics. Web. 31 May 2012. <http://www.spectrum-scientifics.com/cgi-bin/commerce.cgi?preadd=action>. • "Electric Hot Plate,Electric Stove - Suppliers, Manufacturers, Vendors, Factory, Importers, Exporters." Electric Hot Plate,Electric Stove - Suppliers, Manufacturers, Vendors, Factory, Importers, Exporters. Web. 31 May 2012. <http://www.bridgat.com/electric_hot_plate_electric_stove-o204735.html>.

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