Fernandez 3.06: Lab and Guided Lab Report Part I: Prelab Research the answers to the following questions on the internet‚ and write your answers in your own words. For each answer‚ include the address of the website (or title and author of a book or article) that you used to help you answer the question. 1. Which type of compound usually has higher melting points‚ ionic compounds or covalent compounds? What is the reason for this difference in melting points? (3 points) Ionic compounds usually have
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The Red Ribbon - g/ram Sally Mayfield was eighteen years old when she decided to leave town for the first time by herself. She lived in Brentwood‚ the older side of the valley. The trees were a thicker and the sidewalk was lifted and cracked‚ showing signs of decay. Everyone walked on the street‚ where you could always see a group of kids playing games or the neighbors walking their luxury dogs. Things there were simple and traditional; everything
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in a Compound CHEM 1315-022 For experiment one‚ The Determination of the Percent of Water in a Compound‚ the sole purpose of conducting this experiment was to determine the percent of water found in compounds such as Magnesium Sulfate‚ Copper Sulfate‚ and so on. Along with determining the percentages of the hygroscopic compounds the experiment allowed for the exploration of separation of hydrogen bonds to ionic solids through the use of heat. The reason that the water clings to the ionic compounds
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Oxide Compounds Room #216 Locker# 1137 Date of Experiment: May 11‚ 2014 Date of Submission: May 16‚ 2014 Purpose: To determine the identity of an unknown hydrated salt calculating the percent water loss after heating and also to determine the empirical formula of magnesium oxide. Results: Table 1: Determination of the mass of waters of hydration of an unknown hydrated compound. Hydrated Compound code: C-14 Mass (g) Crucible + Lid 30.581g Crucible + Lid + Hydrated compound 31
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Aim: to perform a firsthand investigation to compare the physical and chemical properties of magnesium and oxygen when they are experimented to form magnesium oxide Theory: The empirical formula of a compound is the formula that tells us the ratio in which the atoms are present in the compound. To calculate an empirical formula: - Write down the masses of all of the elements present - Convert masses to moles (by dividing by atomic weights in grams) - Divide through by the smallest number of
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Mass of Magnesium Strip Mass of Magnesium Strip and Weighing bottle /g (± 0.001g) | 3.585 | Mass of Weighing bottle /g (± 0.001g) | 3.460 | Mass of Magnesium Strip /g (± 0.002g) | 0.125 | Table 2 : Mass of Crucible and lid Mass of Crucible /g (± 0.001g) | 15.147 | Mass of Lid /g (± 0.001g) | 9.670 | Table 3 : Mass of Magnesium Oxide Mass of Magnesium Oxide and Crucible and Lid /g (± 0.001g) | 24.985 | Mass of Crucible and Lid /g (± 0.002g) | 24.817 | Mass of Magnesium Oxide /g
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Magnesium Oxide: Origin‚ Production and Utilization Magnesium oxide is a basic or alkaline kind of earth metal that naturally originates from seawater. The compound is odorless and colorless that makes it difficult to see by the naked eye. To produce such compound‚ extraction from the seawater by electrolysis and several chemical processes id done. The compound is formed from the thermal processes which make uses of air and oxygen. Magnesium hydroxide is also produced. The versatility of uses of
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Colton Brunk ESPE100 April 7‚ 2013 Megan Vandekerkhove In the presentation given by Megan Vandekerkhove she spoke about what happens when there is a natural disaster and what private sectors and the government do for these. She had an internship at the Lenawee County Health Department Emergency Preparedness‚ where she learned about who‚ what‚ and when things are deployed when a natural disaster or catastrophe happens. In her presentation she pointed out that since the economy has dropped
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Chapter 1: Introduction Chapter 1: Introduction Ionic liquids (ILs) can be viewed as a new and remarkable class of solvent. They are also a type of materials that have a long and useful history‚ where the earliest material that meets the current definition of IL was observed in the mid-19th century when a separate liquid phase called the “red oil” was observed in Friedel-Crafts reaction [17]. Over the following years‚ there has been a rapid growing of interest in ILs due to the realization
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Student Name: Melissa Tatum Student ID: 4593119 Date: 7 Dec 2014 Course and Section Number: SCIN131 A004 Fall 14 Lesson 4 Lab: Chromatography and Ionic versus Covalent Bonds PART 1 Begin by viewing the following Thinkwell video 15.1.3 CIA Demonstration: Chromatography After you watch the above video‚ answer the questions below in sufficient detail: (a) (3 pts.) This video discusses 3 different types of chromatography. List each one mentioned‚ and describe their differences in as much detail
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