Solid State Records

The main purpose of this experiment is to purify an impure solid by the technique of recrystallization. This technique involves several steps, selecting an ideal solvent, dissolving the compound in a minimum amount of boiling hot solvent, filtering insoluble impurities while the solution is hot; crystallizing the purified compound, and isolate the pure compound by vacuum filtration . The unknown used in the experiment was #4, which were white crystals. In order to determine the ideal solvent…

Paragraph 1 (300 - 500 words) Compare and contrast the crystal structures and crystal chemistry of quartz, α-FePO4 and β-FePO4 To compare quartz, α-FePO4 and β-FePO4, it is essential to look at their crystal structures and crystal chemistry. This can be done by observing their three-dimensional structures as well as their reactions to various degrees of temperature. This particular research takes a look at the structure of FePO4 between temperatures of 294K to 1073K. At lower temperatures,…

Title: What was the effect of different types of salt on height of ice cream formation? Purpose The purpose of this experiment was to find out if there was any correlation between different types of salt and the final height of ice cream formations. Background Information Milk is made up of triglycerides (mainly milkfat) dispersed throughout water as an oil-in-water emulsion, or dispersion of globules of one liquid into another. When agitated, the emulsion begins to break down, or coalesce…

and Boiling Points: The particles/substances which are present in a metal are held or joined together by strong metallic bonds. A lot of energy is used to separate these particles. That is why metals have high melting and boiling point. Metals are solid as well as crystalline. They are arranged in a regular pattern and are held closed together. 2. Electrical Conductivity: Metals conduct electricity. The sea of delocalized electrons are mobile and are free to move around in the 3D structure of…

Methods and Materials 0.4g maleic anhydride and 1ml ethyl acetate was added to a test tube and mixed until dissolved. 2ml hexane was then added to the test tube, followed by 0.4ml cyclopentadiene. The test tube reacted for 5 minutes in a test tube rack and then 2 minutes in an ice-bath to allow for complete crystallization. The crystals were then put through the filtering apparatus to collect and dry all the crystals. About 3ml was used to rinse the crystals while in the apparatus. The…

There is no protein, fat, or carbohydrates. The only selected mountain springs are the ones that shows it can be used for a long period of time. Arrowhead Water has minerals for a nice clean and crisp taste. This water is sold in the Western United States. Drinking this water is a great way to stay cool and hydrated. Fiji Water is really different from most waters because of its extraordinary source. One hundred percent of Fiji Water is from different tropical Fiji islands ("FAQs Archive -…

Elizabeth Lee James Poland CHEM 104A 21 September 2014 Discussion and Conclusion of Experiment #4: States of Matter Sleuth Discussion The results of this experiment enabled the experimenter to determine the identity of an unknown salt (#3) using ion-exchange chromatography by analyzing the inorganic salts of the unknown salt, which can be examined by acid-base titration using ion-exchange resin. The stationary phase is made up of acid groups which will attach to the resin, which is then rinsed…

During the first century B.C., the Phoenicians invented glass blowing "in the vicinity of the Palestinian coast" (History of Glass). Used for jewelry, decorative pieces, or vessels, blown glass has been a significant type of glass, having been practiced by numerous cultures across the world. However, glass blowing is a tedious task, requiring "extreme patience, tenacity, and dexterity" and is a long, multi-step process (Sacramento Art Glass). Over time, the difficulty of these numerous steps has…

security difficulties to organizations because of their insight, abilities, and authorized access to data frameworks. The scopes of potential digital evidence supports have grown exponentially, be it hard drives in personal computers and laptops or solid state memories in mobile devices such as smartphones and tablets, even while idleness times linger behind. This paper discusses four best sources of data that forensics experts hunger to get their hands on. They are log files, hard drives,…

evidence from multiple log files in different areas which may take a long time to complete. Using log files as the evidence, the investigators have to prove that the log files are admissible to the judge and jury. The U.S. Code Tile 28, Section 1732 states that “logs files are admissible as evidence if they are collected in the regular course of business.” In any case, this standard of admissibility does not ensure that in a specific case log files can be considered legal. This means the…