Instructor Safety Rules in the Laboratory 1. Never work alone in the laboratory. You should only work in the laboratory while under the laboratory while under the supervision of your instructor and with your assigned class. 2. You should prepare for each laboratory lesson by reading all instructions before you come to class. Follow all directions and review with your instructor the safety precautions needed to conduct the experiment safely before you begin. Only materials and
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Safety in Laboratory Working safely is one of the first things should learn because the safe way is usually the correct and most efficient way moreover Safety is everyone’s business and responsibility . Safety in a machine shop may be divided into two broad categories: Those practices that will prevent injury to workers. Those practices that will prevent damage to machines and tools. How do you work safely:
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for change‚ introducing self managed teams‚ action planning & measurement Ch 4‚ 8‚ 9. 10: Organizational diagnosis‚ action planning‚ change agent effectiveness‚ measurement Laurier Institute‚ Wilfrid Laurier University or tcawsey@wlu.ca The Case of the Unseen Customer Socio-technical systems change Ch 2 & 3: Introductory level case on change Laurier Institute‚ Wilfrid Laurier University or tcawsey@wlu.ca Case of the Amalgamated Laboratory Merging departments Ch 9: Action planning Laurier Institute
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Laboratory method Lesson 42: Different Methods of Plant Propagation Reference: Effective Technology and Home Economics II By: Luz Villanueva Rojo Julia Garcia Cruz Dr. Cristina Villanueva I. Preparatory method Motivation Let the students guess the picture. Jot down their guesses on the board. Reveal the picture. 1. Have you tried planting a seed? 2. Have you tried propagating a plant using different kind of method? Orientation to the Work/Activity Marcotting is another way
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Importance of chemistry : 1. Chemistry can improve the conditions of human life and even save lives. 2. Provides deeper knowledge. 3. * Plastics that are as strong as metals but light weight. * Personal care and household products * Polymers or various sizes and shapes * Metal alloys * Drugs from various ailment CONTRIBUTION OF CHEMISTRY : 1. Food and agriculture 2. energy production 3 . environment preservation 4 . education 5 . clothing 6. colors and
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How to Carry Out Aseptic Techniques in a Batch Culture and in the Laboratory | | | | | | | | | |The batch vessel should be sterilised beforehand using steam. The nutrient medium that is added to the vessel |
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Part One (Flame Test) 1. Create and complete a data table for Part One of the lab. It should include the name of the element (or unknown) examined and the color of the observed flame. Solutions Names Known 1 Barium Known 2 Calcium Known 3 Sodium Known 4 Rubidium Known 5 Potassium Known 6 Lithium Unknown 1 Sodium Unknown 2 Potassium 2. Identify each unknown from Part One of the lab and briefly explain why you identified each unknown as you did. The first unknown from part one from this virtual lab
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Observations and Chemical Changes By: Andre the Giant Higgson 02/19/14 CHE 107 E1 Intro to Chemistry 1 Objective Certain Chemicals like Bromthymol blue and Phenolphthalein can be added to other chemicals to determine acidity or basicity. Other reactions can be observed as well when different chemicals are added to each other. Procedure This experiment involved placing drops of specified chemicals into a well on a 96well plate. Each well number was recorded along with question number and name of chemicals involved
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Experiment 6 :Observation | KA2 | KA3 | Weight of test-tube + solid / g | | | Weight of empty test-tube / g | X1 | X2 | Weight of solid / g | | | Initial temperature of acid / °C | | | Final temperature of mixture / °C | θ1 | θ2 | Temperature change / °C | | | Discussion :[In the experiment sheet‚ the is an error where questions in (c)(i) should be "the heat change involved the reactions involving KA2 and KA3] (c). i : q1 = mcθ1 ; q = (30.00)(4.18)( θ1) = q1 q2 =
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(Name) (Course Name) (Instructors Name) (Date) Summary of chemistry lab report Introduction The two factors which affect the yield of products in a chemical reaction is the amount of starting materials (reactants) and the percent yield of the reaction. Many experimental conditions for example temperature‚ and pressure can be adjusted to increase yield of the desired product‚ in chemical reaction‚ but because chemicals react according to fixed mole ratios( stoichometrically)‚ the only limited
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