this report. These data are consistent with the structure of eugenol‚ shown in Figure 2 below: In addition‚ the IR of the product from the steam distillation of cloves closely corresponds with that of an authentic sample of eugenol shown in the lab text.9 Therefore‚ it can be concluded that the oil which was isolated from cloves is in fact‚ eugenol. 0.53 g of eugenol was recovered from 5 g of cloves. This corresponds to a percent recovery of 7.46%: Amt. Eugenol isolated 0.53 g % Recovery
Premium Distillation Solvent Water
different temperatures 1 .Distillation is only effective if there is a significant difference between the boiling of the two elements. Every element had a unique boiling point specific to the amount of bondsand structure of that element.With that said‚ in this distillation lab the solution used was 50/50 ethanol-water.The normal boiling point of ethanol is 78°C while the normal boiling point of water is100 °C. Theoretically‚ as the solution heated in a distillation apparatus‚ the temperature begins
Premium Distillation Water Evaporation
by which matter can change phase. Which are exothermic and which are endothermic? 5. Rubbing alcohol is very volatile. What does this statement mean? 6. What is dynamic equilibrium? Vapor pressure? 7. How is the “normal boiling point” different from any other boiling point? 8. When do you use heat of vaporization and heat of fusion instead of specific heat? 9. What are intermolecular forces? Explain each one and their relative strengths with respect to one another. 10. Are water and oil miscible
Premium Temperature Thermodynamics Water
b) Use 25mL round bottom flask in your organic kit. Make sure to use 2-3 boiling chips and stopcock grease on all ground class joints. c) Get out the condenser from the organic kit. Also get 3 way connector and the vacuum adapter. You will need to receive in a 10mL clean graduated cylinder. Also get 2 rubber hoses. d) Get the heating mantle and place the 25mL round bottom flask with the ethyl acetate and boiling chips in the mantle. Secure the flask. Then attach the 3 way connector to the
Free Distillation Temperature Boiling point
methods (simple and fractional) the liquids reach a boiling point‚ the molecules then vaporize‚ separate from the stock mixture and then condense back into liquid form down the to the receiver. Simple distillation works well when the two components boiling points have a large difference. Fractional distillation works best when the components boiling points have a small difference. The boiling point of cyclohexane is 80 degrees Celsius. Toluenes boiling point is about 110 degrees Celsius. The liquid with
Premium Distillation Vapor pressure Boiling point
Charles’s Law Prepared by H. A. Neidig‚ Lebanon Valley College‚ and N. Spencer‚ Franklin and Marshall College PURPOSE OF THE EXPERIMENT Establish the relationship between the volume of a gas and the temperature of a gas at constant pressure. Verify Charles’s law. BACKGROUND INFORMATION The volume of a gas at constant pressure increases when the temperature of the gas is raised. This observation was first made by Jacques A. C. Charles in 1787. A quantitative study did not follow‚ however
Premium Pressure Water Temperature
studied through distilling a series of mixtures with different mole fraction. When the mixtures were boiling‚ their vapor was condensed through a water column and collected in a receiving container. Refractive index was collected for starting mixture‚ distillate and residue for each sample. A boiling temperature versus acetone’s mole fraction was constructed to show the liquid-vapor phase diagram. The boiling temperature of azeotrope was determined to be 62.2oC with the composition of 23% acetone and 77%
Premium Distillation Vapor pressure Ethanol
The University of Jordan Faculty of Engineering and Technology Thermodynamics Lab Report Expirement No.2 Instructor: Eng. Rebhi Al-Mashaleh Students Names: Fareed Shatara 2110302 فريد ماهر شطارة Hanna Mansour 0128358 حنا سليم منصور Ghassan Hjazi 0127296 غسان حجازي Ahmad Abu Malloh 0127293 أحمد ابو ملوح Omar Al Khateeb 0120533
Premium Thermodynamics Gas Temperature
Temperature and Humidity Lab Name__ __________________ This activity will look at two of the most fundamental and important elements of weather: temperature and humidity. Objectives: 1. The students will discover the need for measuring instruments to quantify weather observations. 2. The students will learn how to use a sling psychrometer to determine temperature and relative humidity values. 3. The students will explain and understand the difference between absolute and relative
Premium Water vapor Relative humidity Vapor pressure
Melting Point and Boiling Point of Organic Compounds Bongo‚ Sayre‚ J1 1Student‚ Organic Chemistry 1 Laboratory / B11‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapúa Institute of Technology ABSTRACT The melting point of a substance is the temperature at which the material changes from a solid to a liquid state while the boiling point is the temperature at which it changes from liquid to solid. In this experiment‚ the main objectives were to determine the effects of the following
Premium Melting point Carboxylic acid Organic chemistry