Calorimetry Chemistry 1412 Spring 2013 Objective: Determine the calorimeter constants in a coffee cup calorimeter‚ then the calorimeter will used to determine the quantity of heat that flows in a few physical and chemical processes. Materials used: Choice I: Choice II: * Safety Goggles Safety Goggles * Distilled water Distilled water * 150 mL beaker 600 mL beaker * 50 mL graduated cylinder 50 ml graduated cylinder * Calorimeter Calorimeter
Premium Specific heat capacity Heat Thermodynamics
In order to describe the molar volume of pure water the equation V_3=M_3⁄ρ_(3 ) is used‚ whereas those of sodium nitrate and the polyether compound poly(ethylene glycol) (PEG) are shown by V_1=V_(∅_1)^∞and V_1=V_(∅_2)^∞. In these two equations‚ V_(∅_1)^∞ and V_(∅_2)^∞ which are the apparent molar volumes at infinite dilution of sodium nitrate and poly(ethylene glycol)‚ must be computed on the basis of data on apparent molal volume (V_∅). The following equation shows the relation of the V_∅ of a
Premium Chemistry Concentration Water
Achievement Standard 91106 (2.9) Log number: 4 Title: The Heat Text type: Film Director: Paul Feig The film ‘The Heat’ is a film about a very formal but cocky FBI agent who is paired with a really aggressive Boston cop to take down a ruthless drug lord. The FBI agent‚ Sarah Ashburn‚ only agreed to take on this case to get a promotion. The Boston cop‚ Mullins‚ was chosen to do this case because she knew the town better than anyone else did. Sarah Ashburn and Mullins did not like each other
Premium Federal Bureau of Investigation J. Edgar Hoover Law enforcement agency
First‚ the buffer was prepared by using the formula as follows: Figure 1: Calculation for prepare 0.1 M potassium phosphate buffer at pH 6 3.4007g of potassium phosphate was weighed and placed in 300 mL beaker. Then‚ 125 mL of water was added into the beaker that contained potassium phosphate. The mixture was dissolved using the stirring rod‚ and then the magnetic stirring bar was placed in the beaker for further dissolve when measuring the pH. The pH meter was used to measure the solution
Premium Buffer solution Serum albumin
CHEMISTRY IA: Processing CALORIMETRY QUANTITATIVE DATA TAKEN (07.05.14 and 21.15.14) Initial Pringle Mass H20 Amount Final Pringle Mass Δ Pringle Mass Initial H2O Temp (± 0.5°C) Max H2O Temp (± 0.5°C) Δ H2O Temp (± 0.5°C) SAMPLE 1 10g 225mL 1.85g 10g-1.85g=8.85g 22.3°C 59.8°C 37.5°C SAMPLE 2 10g 225mL 0.95g 10g-0.95g=9.05g 21°C 61.1°C 40.1°C SAMPLE 3 10g 225mL 1.95g 10g-1.95g=8.05g 23°C 58°C 35°C SAMPLE 4 10g 225mL 1.85g 10g-1.85g=8.15g 50.5°C 83°C
Premium Energy Heat Mass
Chapter 15 & 16: Temperature‚ Heat & Heat Transfer Temperature is a measure of the average (not total) translational kinetic energy. ●ex: there is 2x as much total molecular kinetic energy in a 2L of boiling water than one‚ but the temp of the two volumes are the same (average of translational kinetic energy per molecule is the same in each → Internal Energy- the total of all molecular energies: kinetic+potential (SAME TEMP) ● Ex: apply a flame to 1L h2o for a certain time and its temp rises
Premium Electric charge Electromagnetism Electric current
Thermodynamics/Calorimetry Introduction: Thermochemistry investigates the relationship between chemical reactions and energy changes involving heat. The amount of heat generated or absorbed in a chemical reaction can be studied using a calorimeter. Purpose: The purpose of this laboratory was to determine the heat capacity of the calorimeter‚ and to understand thermodynamics/calorimetry by applying the calorimetry equation‚ Heat lost=Heat gained. We will use calorimetry to determine
Premium Thermodynamics Energy Heat
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. Instructions: This is a two-part lab. Be sure to follow all steps given in the lab and complete all sections of the lab report before submitting to your instructor. Procedure: Part I: Determining the Specific Heat of a Known Metal 1. Place a plastic measuring trough on top of the digital balance‚ and press the "tare/on" button so that
Premium
06.03 Calorimetry: Lab Report Procedure: Part II: Determining the Specific Heat of an Unknown Metal Data and Observations: Part I: Determining the Specific Heat of a Known Metal Metal: Aluminum Zinc Iron Copper Mass of metal 27.776g 41.664g 34.720g 41.664g Volume of water in the calorimeter 26.0mL 26.0mL 26.0mL 26.0mL Initial temperature of water in calorimeter 25.3 °C 25.3 °C 25.3 °C 25.3 °C Temperature of hot water and metal in hot water bath 100.5 °C 100.5 °C 100
Premium
West Bengal Council of Higher Secondary Education VidYasagar Bhavan No : DS(A)SD 9/2‚ Block lPvBl 861 42l2oL3 DJ‚ Sector-ll‚ Salt Lake‚ Kolkata - 91 Date :09.07.2013 NOTIFICATION Attn: All Heads of Higher Secondary lnstitutions has already This is to notify that west Bengal council of Higher secondary Education published the following Text Books : 1. 2. Blackswan English A & B for Class Xl and Xll - printed & distributed by Orient by Bengali A for Class Xl and Bengali
Premium India West Bengal Kolkata