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 Type of Variable Ratio of moles of water to ethanol Independent Boiling PointDependent PressureControl Volume of the mixtureControl

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

14. Procedure

15. Setting Up the Three Way Flask and Reflux Condenser

17. Results

18. Qualitative Data

22. Molar Ratios

24. Data Analysis

30. Conclusion

31. Evaluation

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

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

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

35. Uneven Boiling Whether the mixture is or is not homogenous

36. Works Cited "Elmo33: Measuring Volume." Elmo33: Measuring Volume. Web. 30 May 2012.. "Graduated Cylinder - PP, Blue Printed Graduations." : Globe Scientific Inc.: Laboratory Plasticware, Laboratory Glassware and Laboratory Equipment Specialists. Web. 30 May 2012.. "Laboratory Retort Stand Kit." Laboratory Retort Stand Kit. Web. 30 May 2012.. "Pipette Products, Buy Pipette Products from Alibaba.com." Alibaba. Web. 30 May 2012.. "Liebig." --- SciLabware. Web. 30 May 2012.. "A Problem Has Occurred." Spectrum Scientifics. Web. 31 May 2012.. "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..