Lab 4: Cell Structures and the Gram Stain Purpose: The purpose of this lab is to familiarize the student with the use of a compound microscope and the Gram Stain test. Students will review a brief video and slides to introduce the compound microscope. Students will also view a video about the Gram Stain procedure and then answer questions related to it. Hypothesis If I look at the slides I will see where the cell wall is and what lies inside it and in the Gram Stain if I watch the video I will
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higher heat combustion Hypothesis: The alkanols with the longer carbon chain will a higher heat combustion Background Information: Heat combustion can be calculated by using various formulas. By using ΔH= -mcΔT‚ we can gather the amount of heat released. Since the experiment is exothermic‚ ΔH will have a negative value. By dividing the total amount by 1000‚ the units changes into KJ. Divide the total KJ of heat by the amount of fuel used(in grams) which gives the amount of kilo jewels per gram. By
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in this report is heat transfer in a concentric tube heat exchanger. A heat exchanger is a device used to transfer heat from a hot fluid to a colder fluid. Heat exchangers are widely used in the petroleum industry for various reasons. Some of the most important reasons are theta heat exchangers increase the process efficiency‚ conserve energy‚ reduce maintenance and provide employee safety among many other reasons. The main objectives of the lab study were to determine the heat transfer rate‚ the
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Heat exchanger A heat exchanger is a device that is used to transfer thermal energy (enthalpy) between two or more fluids‚ between a solid surface and a fluid‚ or between solid particulates and a fluid‚ at different temperatures and in thermal contact. In heat exchangers‚ there are usually no external heat and work interactions. Typical applications involve heating or cooling of a fluid stream of concern and evaporation or condensation of single- or multicomponent fluid streams. In a few heat exchangers
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Gram Staining Lab Introduction Gram staining is a very important technique used in biology labs all over the world. It is a technique used to differentiate types of bacteria using certain physical and chemical characteristics of their cell walls. Gram positive bacteria (which show up purple after the gram staining process) have a very thick layer of peptidoglycan where gram negative bacteria (which show up pink after the gram staining process) have a much thinner layer of peptidoglycan. One thing
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then slides onto a horizontal plane where it finally comes to rest 8 meters from the beginning of the plane. The curved incline is frictionless‚ but there is an 8newton force of friction on the block while it slides horizontally. Assume g = 10 meters per second2. a. Determine the magnitude of the acceleration of the block while it slides along the horizontal plane. b. What time elapses while the block is sliding horizontally? c. Calculate the radius of the incline in meters. 1997
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Experiment no. 1 Group No./Time/Day:6/7:30-10:30/Wednesday I. Title: Specific Heat of Solids II. Object: To determine the specific heat capacity of solids by methods of mixtures. III. Apparatus: Lead and Iron shots‚ Electric heater‚ Calorimeter‚ Dipper‚ 2 Thermometers‚ Water bath‚ Set of Masses‚ Trip Scale balance‚ Extension cords.
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Tylenol cyanide poisoning incident. Now several decades later‚ J&J’s Consumer Product Division has put the company and . its reputation in jeopardy by its slow and ineffective response to a series of ongoing problems. ineffective This article provides an ethical analysis of those events and addresses the negative impact on Johnson and Johnson’s once sterling reputation. Business‚ ethics‚ recalls‚ Johnson & Johnson‚ reputation‚ FDA J&J: An ethical analysis‚ Page 1 analysis Journal of Academic
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Heat transfer is a discipline of thermal engineering that concerns the generation‚ use‚ conversion‚ and exchange of thermal energy and heat between physical systems. Heat transfer is classified into various mechanisms‚ such as thermal conduction‚ thermal convection‚ thermal radiation‚ and transfer of energy by phase changes. Engineers also consider the transfer of mass of differing chemical species‚ either cold or hot‚ to achieve heat transfer. While these mechanisms have distinct characteristics
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PERFORMANCE OF A HEAT EXCHANGER Student Name: Chai Shu Qian Student ID: 0317060 Group Members: 1. Aaron Yesudian A/L William Yesudian 2. Anis Raihana Binti Abdul Aziz 3. Choo Choong Onn 4. Lee Kim Weng School of Engineering Taylor’s University Malaysia 15 April 2014 Table of Content
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