Melting Point Determination and Thermometer Calibration Lab Background: The melting point of a substance‚ a solid in this case‚ signifies the temperature at which the first crystal starts to melt until the temperature at which the last crystal disappears is reached. That being said‚ melting points are expressed in ranges‚ am organic compound will have a sharp range depending on the purity of the compound. Impurity of an organic substance will register an abnormal melting point based on its
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Melting Range Report Name: Date: Lab Section: Selected Known Compounds Name Structural Formula Literature Melting Point Acetanilide C8H9NO 114.3°C Fluorene C13H10 116.5°C Experimental Data Sample Composition 1. 100% Acetanilide 2. 10% Acetanilide 3. 25% Acetanilide 4. 50% Acetanilide Fluorene 5. 75% Acetanilide 6. 90% Acetanilide 7. 100% Fluorene Melting Range 108-116°C 108-112°C 105-112°C 102-109°C 105-112°C 109-115°C 108-114
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BICH 172 – Introductory Biochemical Laboratory Worksheet 10 - DNA Melting Curve Course Code: BICH172 Course Name: Introductory Biochemical Laboratory Student Name: CHUNG YUK MAN EMILY Student ID: 10198465 Group Number: 10 Date of Experiment: 16th November 2010 Q1. State the experimental aim and describe the term “hyperchromic effect”. (2 mark) The experimental aims are to study the basic structural characteristic of DNA molecules through UV spectrum
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Crystallization and Melting Points Organic Chemistry 221 9/19/2012 Intro/Purpose: The purpose of this lab was to use crystallization to separate a compound from a solvent and be able to choose the best solvent to do so. Then identify an unknown and verify purity using melting points. Solubility contributes to crystallization; because a solute has lower solubility at lower temperatures‚ which makes the solvent separate from the solution as a solid. This process is important to understand because
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Pol Pot‚ leader of the radical Khmer Rouge in Cambodia stands as one of the most savage mass murderers in the history of the world. In an attempt to create a utopian agrarian society‚ Pol Pot eliminated all opponents to his totalitarian regime. Up to 2‚000‚000 Cambodians lost their lives to this cleansing‚ the equivalent of more than twenty-five percent of the entire population. The world looks on in horror at the aftermath of this destruction. Pol Pot‚ or Saloth Sar‚ was born on May 19‚ 1925‚ in
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Chicken Pot Pie Today I am going to teach you how to cook chicken pot pie in a crock pot. This recipe is a family favorite and is especially great in the winter time to come home to a hot cooked meal. This recipe has been in the family for a couple of generations‚ my great great grandmother first made it and it has gone down the generations since then. First‚ you will have to have the ingredients to make chicken pot pie and also a crock pot. The ingredients that you will need to make this include:
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Melting pointe determination #01 Introduction: Objective To learn how to obtain an accurate melting point using a MELTING POINT APPARATUS‚ then use them to draw eutectic curve and determine the eutectic point. Melting point of a solid is the temperature at which the solid and its liquid form are in equilibrium‚ i.e.‚ molecules move back and forth between the two states at the same rate‚ so both phases remain present. If the temperature of a solid is measured carefully as the solid is heated
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Submitted To: Ma’am Irin Martinez Submitted By: Neikoll Aleja S. Del Mundo Grade 7 - Einstein Table of Contents * Introduction of Pot Marigold/s * Scientific Name * Climate * Mode of Reproduction * Varieties * Benefits to Human and Ecosystem * By Products * Facts Introduction of Pot Marigold Pot Marigold is a plant in the genus Calendula of the family Asteraceae. It is probably native to southern Europe‚ though its long history of cultivation
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Melting Ice Caps The Arctic is global warming’s canary in the coal mine. It is a highly sensitive area which is profoundly affected by the changing climate. The average temperature in the Arctic is rising twice as fast as elsewhere in the world (nrdc.org). Because of this‚ the ice cap is getting thinner‚ melting away‚ and rupturing. Here is an example of this; the largest ice block in the Arctic‚ the Ward Hunt Ice Shelf‚ had been around for 3000 years before it started cracking in 2000 (nrdc
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Freezing and Melting of Water. 10/24 Richard Landolfi Due Date:11/1 Purpose the purpose of this lab is to determine the freezing and melting temperature of water. Freezing temperature‚ the temperature at which a substance turns from a liquid to a solid‚ and melting temperature‚ the temperature at which a substance turns from a solid to a liquid. Hypothesis If the water is at a low temperature then it will freeze
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