types of calculations that are colligative properties are: freezing point of depression‚ boiling point elevation‚ vapor pressure lowering‚ and osmotic pressure.1 Colligative properties are present in everyday life‚ such as adding salt to a boiling pot of water. By adding salt to the water‚ the boiling point of elevation is raised and the boiling salt water will have a higher temperature compared to the temperature of boiling pure water.2 The colligative property that will be used in this experiment
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Results My unknown sample was number 18. I did three melting point trials‚ which resulted in a melting point range of approximately 120°C to 122°C‚ as shown in Table 1. I also did two mixed melting point trials using Benzoic Acid and Succinimide‚ as shown in Table 2. Percent recovery is 28.26 grams. Table 1: Unknown Melting Point Trials Trial Melting Point 1 120°C – 122°C 2 120°C – 122°C 3 119°C - 122°C Table 2: Mixed Melting Point Trials Trial Benzoic Acid MP Unknown #18 MP Succinimide
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Lab Name: Molar Mass by Freezing Point Depression Researcher: Isabella Cuenco Lab Start Date: November 9‚ 2012 Lab Completion Date: November 9‚ 2012 Table of Contents SECTION NAME I. Introduction II. Procedure III. Data IV. Analysis V. Conclusion PAGE NUMBER I. INTRODUCTION Purpose: The purpose of the lab is to find the molar mass of an unknown substance by measuring the freezing point depression of a solution of the unknown
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Holocaust and Pol Pot in Cambodia were both horrible events in history. They were both similar and different in many ways. In both events victims were sealed from the outside world. Women‚ men‚ and children were being overworked and starved. And even after all the hard work thousands of them were being killed. Both leaders had different plans‚ but one thing they both had in mind was genocide. In both events the victims were being sealed off from the outside world. In Cambodia‚ Pol Pot wanted all culture
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half melted. To keep this experiment valid I will keep the amount of ice‚ the time‚ and the amount of materials the same. In my experiment I will test to see what materials will change the ice to its freezing point depression state where it will be melting and there will be ice surrounded by water it just melted off. A few more scientific concepts that relate to this are the Freezing
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Specific purpose: To inform my audience about the specific problem of human trafficking in Cambodia. Introduction: Attention: I ventured to Cambodia‚ located in South West Asia two years ago and met a precious girl named Emily. She was 15 years old and had six cases pending in the judicial system for human trafficking with foreign men from six different countries. She was currently living either on the streets at night or in guest houses with different men. Today she is 17 and she is owned by a
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In the article‚ Why are Starfish ‘Melting’‚ by Jane J. Lee‚ they explain that millions of starfish‚ for the past year and a half‚ have had a lethal virus which has turned them to white goo. The virus is a kind of parvovirus‚ which is “the group of viruses that cause gastroinintestical problems in unvaccintated dogs.” Although this virus is killing many starfish there isn’t very much that researchers can to to try to stop it. A marine ecolologist at Cornell University of Washington in Seattle
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Thermometer is the device used to measure temperature. The extremely fine tube (narrow bore) of a thermometer is called a capillary. The boiling point of water (or condensing point of steam) is 100oC or 212oF or 373 K. The freezing point of water (or melting point of ice) is 0oC or 32oF or 273 K. These temperatures are typically used in the calibration of thermometers and are known as the fixed points. The temperature range that is typically marked on a laboratory thermometer is −10oC to 110oC.
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Creative Technique There are a few technique that i really like. The creative technique that I chose is the Pot Bound technique. The pot bound technique works with clients who find themselves stuck in situations that offer no room for personal growth or development. The client will usually feel stifled. The analogy used for this technique is that you are like plant that has been put in a small post. Although you have grown to some degree‚ you will never gro to your full potential unless you change
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Are you putting aside your crock pot‚ seeing that summer is about to begin? If you will just do a bit of research on food blogs‚ you will be surprised to discover how helpful this domestic device can even be during the hot months. Rest assured crock pot healthy recipes are not limited to the winter time. You may forget baking and cooking stews on the summer months‚ but you can still try corn on the cob‚ tacos‚ and scalloped fruits to make a cooler weather. And if you will be on travel and dining
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