Liquid Nitrogen Liquid nitrogen is nitrogen in a liquid state at a very low temperature. Its chemical formula is N2. Manufacturing of Liquid Nitrogen Liquid nitrogen is made by cooling and compressing air straight from the atmosphere. The type used to produce large amounts of liquid nitrogen looks vastly different but really happens is that air squashed and cooled . When you squash it‚ air molecules are forced closer together. If you also cool it down the molecules can slow down enough to
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60C ICE water bath Distilled water Soap detergent Large Onion NACL‚ table salt 1 test tube 95% Ethanol Beaker Method: Set up hot water bath at 55-60ƒ C and an ice water bath. For each onion‚ make a solution consisting of one tablespoon (10 ml) of liquid dishwashing detergent or shampoo and one level 1/4 teaspoon (1.5 g) of table salt. Put in a 1-cup measuring cup (250 ml beaker). Add distilled water to make a final volume of 100 ml. Dissolve the salt by stirring slowly to avoid foaming. Coarsely
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March 2‚ 2011 Lab Report Physical Properties of Two Types of Solids SCH3U0 Maggie Liu Abstract The purpose of this lab is to study some of the physical properties of two types of solids – ionic and molecular. The samples used are sodium chloride (ionic) and camphor (molecular). The physical properties studied are odour‚ hardness‚ melting point‚ solubility in water and solubility in 2-propanol. It is observed that some of the physical properties of sodium chloride are no odours‚ hard‚ a
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Unit Five: Lab Assignment #1 1. How does Newton’s law apply to a company’s brand? Explain‚ citing at least one example. A= The more massive a brand the more force it need to change its position. 2. How does Heisenberg’s Uncertainty Principle apply to market research? Explain. A= With the active observing consumers changes their behavior‚ you are able to measure what the consumers actually do vs what they say they do. 3. How does the scientific method apply to marketing? Explain‚ citing an example
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How Does Liquid Crystal Display Television Works? Submitted to: Prof. Rico Bien Simon Oxales Submitted by: Manalon‚ Angelo Ocaya‚ Angelou Ortiz‚ Joel Partos‚ Mhar Angelo Ravena‚ Rosemarie How Does Liquid Crystal Display Television Works? 1. What are the Basics of Liquid Crystal Display? 2.1. Where does LCD display rely? 2.2. What is the purpose of liquid crystals? 2.3. What makes up the apparent color of each pixel on the screen? 2. What is Addressing?
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VBScript Modular Lab Report Copy your Mod1_PCTests.vbs program from NotePad++ and paste it into the space provided below. Any portion of the script that will not fit should be continued in the textbox on the next page. ’ Menu Driven Computer / Network Tests ’ This VBScript program is run using the PC_Tests.cmd Batch Script Set args = WScript.Arguments WScript.Echo vbCrLf Select Case args.Item(0) Case "1" Call System_Information Case "2" Call System_Memory_Size Case "3"
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Your first lab link can be found at Temper Tantrums. A written transcript is also available for this lab. 1. How can parents avoid temper tantrums? ⁃ To avoid temper tantrums parents can be better prepared for the situation so when it happens they know what to do. 2. What are the A‚ B‚ Cs? ⁃ A stands for the attributes you want your child to have ⁃ B stands for the behavior you want to go along with those attributes. ⁃ C stands for the consequence that will be given‚ positive or negative
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Purification of solids Aim: To separate a mixture of carboxylic acid and a neutral substance by treatment with aqueous sodium hydroxide and purifying the carboxylic acid‚ measuring the melting points of the neutral and the acid components. METHOD: A mixture of( 5g) Carboxylic acid and neutral compound were separated by adding 2 mol dm-3 sodium hydroxide (25cm3) to the mixture‚ which separated the water soluble sodium from the water insoluble neutral component‚ by filtration. The solid at the filter
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Student ID No: ___________________ Pages: 9 Questions: 5 EXAMINATIONS FOR DEGREES AND DIPLOMAS October-November 2008 Mechanics of Solids First and only paper Time Allowed: THREE (3) hours Instructions: Answer all questions. -2- Question 1 Figure 1 Two circular A-36 steel1 rods are connected as shown in Figure 1. The rod CD has a diameter of 30mm. Both members are pin connected together at C (see figure detail). You are asked to determine: a b Identify what kind of structural
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CHE 107 24 June 2013 Separation of a Mixture of Solids Step 1: Separating out the Iron Mass of weighing dish: 0.7g Mass of weighing dish and mixture: 5.4g Net mass of the original mixture: 4.7g Mass of 10-cm square paper: 0.8g Mass of 10-cm square paper and iron fillings: 2.0g Net mass of iron filings: 1.2g Step 2: Separating out the Sand Mass of weighing dish: 0.7g Mass of weighing dish and dry sand: 1.7g Net mass of the dry sand: 1.0g Step 3: Separating out the Benzoic
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