06.03 Calorimetry: Lab Report Before You Begin: You may either copy and paste this document into a word processing program of your choice or print this page. Part I The Dissolving of Solid Sodium Hydroxide in Water Procedure: 1. Measure out approximately 200 mL of distilled water and pour it into the calorimeter. Stir carefully with a thermometer until a constant temperature is reached. Record the volume of water and the constant initial temperature of the water on your data table.
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SCHEDULE – III FORM – I (See Rule 24 – A) APPLICATION FOR “IDENTITY CERTIFICATE” FOR APPLYING FOR GRANT /RENEWAL OF PASSPORT / AND ‘NO OBJECTION CERTIFICAT’ TO UNDERTAKE FOREIGN TRIP (To be filled by the applicant) Name‚ Designation‚ office address and scale of pay (if selection grade or special grade indicate respective ordinary grade scale of Pay) Date of Retirement Name of Countries proposed to visit‚ and duration‚(need not be filled up to obtained passport to seek employment abroad) Purpose of
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INDEPENDENT VARIABLES: • The number of carbon atoms in the molecule. DEPENDENT VARIABLES: • Mass of alcohol burnt CONTROLLED VARIABLES: • The length of the wick coming from the spirit burner • Distance of the wick from the bottom of the aluminium can • Temperature change of the water in the aluminium can • Can used as calorimeter • Mass of water in calorimeter • The room temperature (environment) It is important that the controlled variables are all kept the same because it makes the
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Energetics Practical 2: To Determine the Enthalpy Change of a Reaction Background Calcium Carbonate‚ CaCO₃‚ decomposes with heat to form CaO and CO₂. The objective of this practical was to determine the enthalpy change for this reaction by using an indirect method based upon the foundation of Hess’ Law. Both calcium oxide and calcium carbonate react readily with 2 mol/dm3. The reaction can be demonstrated as so: CaCO₃ (s) -> CaO(s) + CO₂ (g) Results: Raw Data Calcium Carbonate Mass of CaCO₃
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Heats of Combustion of Alkanols Aim: To perform a first-hand investigation to determine the heats of combustion of selected alkanols. Hypothesis: It was predicted that methanol would have the highest molar heat of combustion‚ decreasing as the chains become longer. Equipment: • Three spirit burners containing methanol‚ ethanol and propan-1-ol respectively • Electronic scales • Water • 100ml measuring cylinder • Retort stand and boss-head clamp • Copper beaker • Thermometer Method:
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1. What is the frequency (s-1) of electromagnetic radiation that has a wavelength of 0.53 m? A) 5.7 × 108 B) 1.8 × 10-9 C) 1.6 × 108 D) 1.3 × 1033 E) 1.3 × 10-33 2. The energy of a photon of light is __________ proportional to its frequency and __________ proportional to its wavelength. A) inversely‚ inversely B) inversely‚ directly C) directly‚ inversely D) indirectly‚ not E) directly‚ directly 3. What is the wavelength of light (nm) that has a frequency of 3.22 × 1014 s-1? A) 9.32
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Faculty of Chemical Engineering (FChE) SKKK 4153 PLANT DESIGN 2014/2015-SEM 1 FINAL REPORT PROPYLENE PRODUCTION PLANT LECTURER ASSOC. PROF. IR. DR. SHARIFAH RAFIDAH WAN ALWI DESIGN TEAM EQUINOX NO. 1. 2. 3. 4. 5. TEAM MEMBERS EMAD MOHAMMED NOMAN AL-DHUBHANI MUHAMMAD FAIRIS BIN HADIPORNAMA KELVIN RAWING SEBASTIAN NUR FADZLYANA BINTI HAMDAN MIMI KHAIRIAH BINTI AWANG MATRIC NO AA103001 A11KK0022 A11KK0065 A11KK0035 A11KK0169 1 TABLE OF CONTENTS Page TABLE OF CONTENTS 2 CHAPTER 1 INTRODUCTION
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lattice energy. calculate the overall energy change in kilojoules per mole for the formation of CsF(s) from its elements using the following data: Eea for F(g) = -328 kj/mol‚ Ei1 for Cs(g) = +375.7 kj/mol‚ heat of sublimation for Cs(s) = +76.1 kj/mol‚ bond dissociation energy for F2(g) = +158 kj/mol‚ lattice energy for CsF(s) = +740 kj/mol which of the following substances are largely ionic and which are covalent HF ENF = 4.0; ENH = 2.1: DEN = 1.9 HF is polar covalent. (b) HI ENI = 2.5; ENH =
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Measuring the Enthalpy change of combustion Abstract This simple experiment is carried out to show the difference in the enthalpy change of combustion between two fuels‚ hexane and methanol. These fuels are individually weighed before and after used as heat source to heat water in a calorimeter. The result is used to find out amount of heat transferred by the fuel‚ amount of fuel used and the enthalpy change of combustion. Introduction Enthalpy change of combustion is the enthalpy change when
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CBSE-i CLASS XI UNIT-8 CHEMISTRY Thermodynamics Student’s Manual Shiksha Kendra‚ 2‚ Community Centre‚ Preet Vihar‚ Delhi-110 092 India CLASS CBSE-i XI UNIT-8 CHEMISTRY Thermodynamics Student’s Manual Shiksha Kendra‚ 2‚ Community Centre‚ Preet Vihar‚ Delhi-110 092 India The CBSE-International is grateful for permission to reproduce and/or translate copyright material used in this publication. The acknowledgements have been included wherever appropriate and sources from where the material
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