The mythology about rubies is vast and it varies. Some cultures associate it with the Zodiac sign of Capricorn (goat) and in other cultures‚ Taurus (bull). Most cultures consider the ruby as the birthstone for July. However‚ throughout the ages it has been associated with nearly every other month. Ruby’s Day is Tuesday‚ it’s season Summer‚ and it’s apostle St. Matthew. Rubies are a traditional gift for 40th wedding anniversaries. In myth and magic‚ at the time of the Borgias (15-16th century)‚
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Potash alum is prepared by dissolving an equi molar mixture of aluminum sulphate and potassium sulphate in minimum amount of water containing a little amount of sulphuric acid and then subjecting the solution to crystallisation; octahedral crystals of potash alum separate out. Apparatus required: Beaker (100 ml) Trough Funnel Wire gauze Conical flask (100mL) Glass rod Tripod stand Chemicals required: Aluminium sulphate: 10 g Ethanol : 20 mL Potassium sulphate : 2.5 g
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Alum Synthesis: The Chemical Process of Recycling Aluminum Introduction By recycling aluminum cans‚ the costs and energy savings are dramatically more resourceful and efficient than producing aluminum from what it is naturally found in‚ bauxite ore. The process of recycling aluminum to produce potassium aluminum sulfate‚ a common alum‚ will be done through a serious of chemical reactions. Through this reaction‚ percent yield will be determined. Materials and Methods The mass of a 250 mL
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During the synthesis of acetaminophen‚ it is necessary to dissolve all solid material‚ and heat the reaction at a high enough temperature and for a long enough time period to ensure completion. Cooling the mixture in an ice bath ensures that all crystals have formed‚ and drying removes any remaining solvent. The synthesis of acetaminophen does not result in a pure product‚ so recrystallization is necessary to purify the substance. During recrystallization‚ it is important to dissolve all
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David Crystal starts out discussing how others such as John Sutherland said that texting is destroying the English language. And Sutherland had created names for the new language of texting like “textese”‚ “slanguage” and that texting is a digital virus. David Crystal also made the comment that John Humphries argues that people who text are “vandals who are doing to our language what Genghis Khan did to his neighbors 800 years ago. They are destroying it.” David Crystal‚ a professor
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PROPERTIES AND CHARACTERISTICS OF COMMON INDUSTRIAL MATERIALS “LCD‚ LED & CRT” LCD COMPOSITION A liquid-crystal display (LCD) is a flat panel display‚ electronic visual display‚ or video display that uses the light modulating properties of liquid crystals. Liquid crystals do not emit light directly. LCDs are available to display arbitrary images (as in a general-purpose computer display) or fixed images which can be displayed or hidden‚ such as preset words‚ digits‚ and 7-segment displays
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Group B: Model Answer GROUP B MODEL ANSWER Yoshida et al.‚ Flexibility of Hydrogen Bond and Lowering of Symmetry in Proton Conductor‚ Symmetry 2012‚ 4‚ 507-516. DO NOT PLAGIARISE THIS MODEL ANSWER PLAGIARISM FROM ANY SOURCE AUTOMATICALLY LEADS TO A ZERO SCORE Paragraph 1 M3H(XO4)2 compounds are used for electrolytic fuel cells (where M=K‚ Rb ‚Cs; X=S‚ Se). At different temperatures‚ the compound exhibits different degrees of symmetry. There are 3 distinct phases observed. Below 369K
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GROUP B MODEL ANSWER Yoshida et al.‚ Flexibility of Hydrogen Bond and Lowering of Symmetry in Proton Conductor‚ Symmetry 2012‚ 4‚ 507-516. DO NOT PLAGIARISE THIS MODEL ANSWER PLAGIARISM FROM ANY SOURCE AUTOMATICALLY LEADS TO A ZERO SCORE Paragraph 1 M3H(XO4)2 compounds are used for electrolytic fuel cells (where M=K‚ Rb ‚Cs; X=S‚ Se). At different temperatures‚ the compound exhibits different degrees of symmetry. There are 3 distinct phases observed. Below 369K‚ the phase 3 structure belongs
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Quintero English 255 March 21‚ 2013 Crystal Meth Can Destroy Families Introduction The abuse of Crystal Meth is a serious problem that it doesn’t only affect the person abusing the drug but it can affect the family. Some people really don’t know the big problem of Crystal Meth. Some people choose to use Crystal Meth for so many reasons. In order for people to better understand the use of Crystal Meth this paper is going to give you a description of what is Crystal Meth and the effects the drug has
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centrifuged‚ losses of soluble solids up to 5 percent are common and loss of suspended solids during freeze concentration has been more troublesome than loss of soluble solids. 4. Basic methods of freeze concentration There are two basic methods for ice crystal formation in solutions of liquid foods as shown in Fig 2‚ according to Aider et al. (2009)‚ The first method is suspension crystallization figure 3a; it is containing on an initial phase of nucleation‚ followed by a second phase that includes the
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