LAB REPORT FOR EXPERIMENT #2: PURIFICATION OF ACETANILIDE BY RECRYSTALLIZATION Your name TA’s name Your Partner’s name Lab Section OBSERVATIONS: A. SELECTING A RECRYSTALLIZATION SOLVENT | |Solubility Test (cold) |Solubility Test (hot) | |Water |insoluble |soluble | |pet ether |insoluble
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Biology College of Science De La Salle University – Dasmariñas Dasmariñas‚ Cavite Philippines ABSTRACT This experiment was performed to learn the technique of acid-base titration and to compare the efficiency of commercially available antacids by looking at their weight of HCl and weight of antacid values. The analysis of antacid tablets was highlighted in this experiment. The efficiency of antacid tablets was determined and compared when the number of grams of HCl can be neutralized by
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Experiment 2: Intermolecular Forces Performed: 9/12/2011 Submitted: 9/20/2011 Chemistry 1046L PART I: Purpose: The purpose of partI in this experiment is to identify a variety of unknown substances’ properties using observations of the temperature changes that occur during evaporation. We know that substances with weaker intermolecular forces‚ such as London dispersion‚ will have a faster vaporization rate and thus a higher temperature difference compared to
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steam in equilibrium with water. 2. To determine the vapour pressure curve. Introduction Properties of a fluid can change when heat and work are applied to it. There’s an interchange between the fluid and its surroundings when heat and work are applied according to the study of thermodynamics. Substances such as gases and vapors are often referred as P-V-T substances. Theory: An ideal gas obeys the equation of state that the pressure‚ specific volume or density‚ and absolute temperature
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expected to: a. Find the volume of a prism b. Solve problems involving finding the volume of a prism II. Subject Matter: Topic: Volume of a Prism Reference: Math Essential Geometry for 3rd year Materials: Presentation Prerequisite concepts/ Skills: Volume of Prism Process skills to be emphasized: Logical Thinking III. Procedure: Teacher’s Activity | Pupil’s Activity | A. Preliminary Activities 1. Drill Answer orally. 1. 23 2. 53 3. 73 4. 92 5
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Physics 201 – G01/M02 Name/Course/Year: Noel S. Alvarez BSIT – II Date Submitted: November 29‚ 2012 Experiment No. 1 Group No./Time/Day: 3 / 12NN-3PM/Thurs MEASUREMENT‚ ERRORS AND DENSITY I. Objective: a. To know the principles of good measurement and to compare the precision and accuracy of some commonly used measuring devices. b. To study the types‚ causes and effects of errors in measurement. c. To determine the density of solids by direct measurements. II
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Question 2 Cost Volume Profit Analysis 1.0 Introduction According to Jon Scheumann “a successful organizations need a culture that is attuned to cost management and pay attention to cost structure” From that statement manager must pay attention and carefully thinking when do decision making to the cost. For example when manager want to target the profit. They must take every cost that related in production such as variable cost and fix costs. Cost Volume profit analysis is used in decisions
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World Customs Journal April 2009 Volume 3‚ Number 1 ISSN: 1834-6707 (Print) 1834-6715 (Online) World Customs Journal April 2009 Volume 3‚ Number 1 International Network of Customs Universities World Customs Journal Published by the University of Canberra‚ Australia and the University of Münster‚ Germany on behalf of the International Network of Customs Universities Management Group (INCU MG Inc.‚ Australian Capital Territory reg. no. A04701). The International Network of Customs
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BSED-IV Laboratory Experiment no. 2 The Living Plant Cell Objectives: * To study the different types of plant cells. * To observe plant cells as to their shapes‚ structures and function. Materials: Microscope cover slip glass slide water onion Iodine soln. hydrilla salt tomato razor blade Medicinal dropper epidermal tissue of rhoeo-discolor Procedure: 1. Onion Cell 1. Prepare an onion bulb 2. Place a drop of water
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12. Provide a description of a cell surface specialization. A cell surface specialization can be defined as an extension of the cell surface which performs a specific function for a larger organ or tissue. Examples of cell surface specializations include microvilli‚ cilia‚ stereocilia‚ and goblet cells. Microvilli can be described as tiny finger-like folds made of microfilaments in the cell membrane‚ and functions to increase surface area for absorption. Cilia are longer‚ more hair-like projections
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