5. Calculated mass of the sinker in ounces 1.74g Part C 1. Length of the foil 8.5cm 2. Width of the foil 8.5cm 3. Mass of the foil .60g 4. Volume of the foil .222 5. Thickness of the foil .0031 Part D 1. Boiling point of the ethanol 65ºc Part E 1. T¹ initial temperature 125ºc 2. T² final temperature 155ºc Post lab questions: 1. Based on my temperature value and my lab measurements‚ I calculated that the water density would be 2.16 (g/mL). This
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dT/dP : - The clausius-claperon equation was used for calculating the theoretical dT/dp : = T . Vfg ( dT ) (dP )sat hfg The calculations of the point of pressure equals 3.9 bar is briefly shown here : Table (2 ) : Saturated Water and Steam Table hfg Vg T (C ) P (bar) 2164 0.6057 133.5 3 hfg* Vg* T* 3.9 2134 0.4623 143.6 4 By interpolation we get : oC T* = 142.59 Vg* = 0.4766
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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
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BOILING POINT G1 Decreases going down. Because metal bonds get weaker. Less energy is required this metallic bonding. BOILING POINT G 17‚18 Increases. Because the atomic size incrases. The molecules are attracted by intermolecular forces. Going down the group‚ the intermolecular forces increases. More energy is needed to overcome these stronger forces. DENSITY Because mass increases faster than volume. REACTIVITY OF GROUP 1 The number of occupied shells increases. The atomic size increases
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Laboratory #16: Analysis of Grease in Water by Solvent Extraction Experiment Date: 2/19/10 Due Date: 2/26/10 II. Objective The goal of this lab was to determine the amount of impurity‚ in the form of oil‚ in water using the method of solvent extraction‚ also known as liquid-liquid extraction‚ a method of separating two materials with different physical and/or chemical properties. Two methods of evaporation will be used to finally determine the concentration of impurity- one using an explosion-proof
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EXERCISE 10: Melting Point and Boiling Point Determination This is a traditional lab. You’ll simply follow the step-by-step procedure‚ keeping records of your measurements and observations. Each student will write their own lab report‚ which should include the following: Name: Names of lab partners: Date of Experiment: Date Report Submitted TITLE: Purpose: A brief statement about what the experiment is designed to determine or demonstrate about chemistry Procedure: Brief summary
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Determination of Melting and Boiling Point of different Organic Compounds Bakare‚ Abimbola Kristine‚ C. Professor Miranda Marilyn‚ school of chemical engineering and biotechnology‚ Mapua Institute of Technology‚ CHM145L-B11 ABSTRACT A melting point of a solid is the temperature at which the first crystal just starts to melt until the temperature at which the last crystal just disappears. Thus‚ the melting point (m.p.) is actually a melting range. The melting point of a substance depends (usually
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EXPERIMENT 1 COLLIGATIVE PROPERTIES OF SOLUTIONS Date: December 03‚ 2013 Locker 21 Members: Vanessa Olga Dagondon Christine Anne Jomocan Janica Mae Laviste Nablo Ken Menez A. TYPES OF DISPERSED SYSTEMS Results and Discussion The first part of the experiment aims to differentiate the different dispersion systems. In this experment‚ three systems are introduced: true solution‚ colloidal dispersion and coarse mixture. The said three systems are classified through a property of colloids known as the
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Chem 205 I. Title and Equation: Unimolecular Elimination + 2 Isomers II. Experimental Procedure : In a flask‚ 0.081 mol of 2-methycyclohexanol and 3 mL of 85% H3PO4 were mixed. The mixture was boiled under a fractional distillation column‚ and 7 mL of the distillate was collected. The organic and aqueous layers were separated and the organic layer was dried with anhydrous sodium sulfate. The product was analyzed using GC. III. Conclusion: In this experiment‚ 2-methylcyclohexanol
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Celsius) as water changed from solid to liquid to gas over a hot plate. This lab report will discuss quantitative and qualitative data contained in the lab‚ how energy is related to phase change in water and an elucidation of how melting point and boiling point relate to the physical properties of matter. This paper will basically outline the lab done in class and a way for the teacher to see what was learned from this lab. A real-life situation to this phase change of water is the glaciers that
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