PPT-Boiling Point Determination

Experiment 2 The boiling point is the temperature at which it changes the compounds from a liquid phase to a gas phase and the temperature when its vapor pressure is equal to the atmospheric pressure. x BOILING POINT DETERMINATION The physical properties of a compound such as melting point and boiling point can provide useful information which can help in the identification of a sampl e or to establish its pur ity Since the boiling point of This is because a large fraction of the heater surface is covered by a vapor film which acts as an insulation due to the low thermal conductivit of the va or PTalukdarMech IITD yp relative to that of the liquid brPage 3br Beyond point D The heat tra Describe what happens to the particles during this process. Explain why this happens.. Solid to gaseous/vapor form. Vapor to solid. Dry Ice . The Iodine Test. Iodine test: http. ://www.youtube.com/watch?v=4fAOI6BeMZY. 1 of 3 lm9080@aol.com Goal: Flash point and boiling point data for 248 compounds, arranged in a homologous series, are analyzedby various statistical methods in order to investigate the correlation be These are the first 4 alkanes. Can you draw the 5. th. , 6. th. and 7. th. alkane?. What happens to the number of hydrogen atoms every time?. How Does Hydrocarbon Chain Length Affect Boiling Point?. Colligative Properties. Bill Vining. SUNY Oneonta. Colligative Properties. In . this section…. Osmotic pressure. Vapor pressure lowering. Distillation. Boiling . p. oint elevation. Freezing Point depression. 5.5B . Identify . the boiling and freezing/melting points of water on the Celsius scale. . STAAR 2013 #14; RC 1; Supporting; 47. 1. A student measures the temperature of water being heated on a hot plate. The student observes that the temperature of the water is 53ºC. How many more degrees Celsius must the temperature rise before it reaches the boiling temperature of water?. The heating curve is a graph which represents how a sample changes phases. As heat is added over time, the sample changes temperature and phase accordingly. Thus . heating . curve.. Using a full sheet of paper, make a large scale drawing of this diagram.. water. ?. How does altitude affect the boiling point of water?. Gather your data. Altitude (. ft. ). Boiling. Point . (. o. F. ). 0 ft.. 212.0º. 1000 ft.. 210.1º. 2000 ft.. 208.1º. 3000 ft.. 206.2º. Introduction. The objective of evaporation is to concentrate a solution consisting of . a nonvolatile . solute and a volatile solvent. In the overwhelming majority of . evaporations the . solvent is water.. 1. DISCLAIMER & USAGE. The content of this presentation is for informational purposes only and is intended for students attending Louisiana Tech University only. . The authors of this information do not make any claims as to the validity or accuracy of the information or methods presented. . Introduction. What is . distillation? . A . distillation . is . the process . that includes the vaporizing . a . liquid from a pot and the subsequent condensation of . the vapor . and . collecting the condensate in a . water. ?. How does altitude affect the boiling point of water?. Gather your data. Altitude (. ft. ). Boiling. Point . (. o. F. ). 0 ft.. 212.0º. 1000 ft.. 210.1º. 2000 ft.. 208.1º. 3000 ft.. 206.2º. It is used in pharmacy either . to extract volatile active principles from vegetable drugs or to separate volatile substances from their less volatile impurities. .. It also provides . a method of recovering volatile solvents notably, alcohol for further use.