Purpose: To find out if the Unknown substances are bases or acids. Materials: goggles aprons paper for data table graduated cylinder unknown I substance beakers/test tubes stirring rod litmus paper pH indicator paper pH color chart phenolphthalein scoopula eye-dropper digital pH meter magnesium ribbon calculator unknown II substance forceps sodium bicarbonate Procedures: Test the pH of the Unknown substances with litmus paper and pH indicator paper and match to color chart
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Identification of One’s Self In the opening lines of Fred Schepisi’s 1993 film‚ “Six Degrees of Separation”‚ Ouisa Kittredge states‚ “I read somewhere that everybody on this planet is separated by only six other people. Six degrees of separation.” This refers to the theory that each person is separated from another person by no more than six people. This theory will turn out to play a major role in the plot of the film. The entertaining and flashy movie was filled with “chaos and control”
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------------------------------------------------- Hydrochloric acid From Wikipedia‚ the free encyclopedia (Redirected from Muriatic acid) Not to be confused with hydrogen chloride. Hydrochloric acid | | | | Other names[hide] * Muriatic acid[1] * Spirits of salt[2] | Identifiers | CAS number | 7647-01-0 | ChemSpider | 10633809 | UNII | QTT17582CB | EC number | 231-595-7 | ChEMBL | CHEMBL1231821 | ATC code | A09AB03‚B05XA13 | Properties | Appearance | Colourless
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and operating purposes‚ gravity separation can be divided into six operations: 1) heavy media beneficiation. Re-election must be conducted in the media‚ with media air‚ water‚ and re-solution or the re-suspension‚ one of the most commonly used are water‚ air‚ called wind beneficiation‚ with density greater than water weight liquid or re-suspension is known as a heavy media beneficiation. The heavy media beneficiation is a strictly mineral density sorting method. 2) classification. Of granular material
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The Separation of Church and State Aaron Henson PS1355 2/7/2015 Throughout history‚ this topic has generated much of controversy. Ancient history is full of examples of the state or governing authorities interfering with religion. There were rulers or kings that assumed various “priestly” titles‚ like the “temporal” titles that their offices command. An example of such state-church mixing and melding‚ led to the execution of Socrates‚ for his disrespect for the gods( in Biblical times
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EXPERIMENT 2 ACID DISSOCIATION CONSTANT OF AN INDICATOR DYE OBJECTIVES Using spectrophotometric method: determine the wavelengths at which the acid and base forms of the dye in aqueous medium exhibit maximum absorption; determine the molar absorptivities of the acid and base forms of the dye and estimate an unknown concentration of the dye in solution using the Beer-Lambert’s Law; and determine the acid dissociation constant of the indicator dye. THEORY The absorption or reflection of
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Isolation of the Components of BC Powder Introduction Aspirin‚ Caffeine and Salicylamide were extracted from an over-the-counter pain reliever (BC Powder). These components were separated by manipulating their solubilities by adjusting the acidity and basicity of the solution. By doing this‚ the three components were forced into conjugate acid (or base) forms‚ causing selective solubility in either an aqueous or organic solvent. These layers were then separated by use of a separation funnel. Once
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solution of an acidic and organic compound and purify its respective acidic product through the techniques of an acid base extraction‚ recrystallization‚ and use of Melt Temp (melting point range). The reaction of an unknown acid (3-chlorobenzoic acid) with diethyl and sodium hydroxide was observed‚ and the solution naturally separated into an aqueous and organic solution. The mixture of acid and organic solution was created and then separated through the Hirsch funnel into separate beakers of an aqueous
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Components of Argumentative essay and the use of language After deciding on your thesis and choosing your readings‚ you will now be ready to write you index cards by summarizing‚ paraphrasing and quoting (Portfolio item 3). Synthesizing (will be further explained in week 8) Your index cards will later be organized in a way to form the bigger picture. This is what we call ‘Synthesis’. It is the process of arranging the different pieces to create a mosaic and give it a personal meaning
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Lab Conclusion on Density In the lab of measuring density‚ precision and accuracy are very key components. Precision is the exactness of a measurement or good technique. Now accuracy is the value that we measured compared to the true value that the book has. Precision and accuracy are important because you need to have good technique and have your value close to the true value to minimize the error analysis. If you do these steps correctly you are a good chemist but if you do them poorly they
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