Grainy and shiny white Becoming all liquid 125 Clear B. Melting point of unknown #42 1st trial Temperature (¡ÆC) Observation Unmelted Shiny light yellow crystal First liquid appear point 99 Grainy yellow Becoming all liquid 101 Clear 2nd trial Temperature (¡ÆC) Observation Unmelted Shiny light yellow crystal First liquid appear point 95 Grainy yellow Becoming all liquid 97 Clear C. Melting point of mixture (Unknown + Benzil) Temperature (¡ÆC) Observation Unmelted Shiny light yellow
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Unknown 2 Scheme “ Fair game” ions Cations: Na+‚ K+‚ NH4+ ‚ Ca2+‚ Mg(OH2)62+ ‚ Al(OH2)63+ Anions: SO42-‚ HSO4-‚ NO3-‚ OH-‚ Cl-‚ CO32-‚ HCO3- Insoluble Compounds: Ca(OH)2‚ CaSO4•2H2O‚ CaCO3‚ MgCO3‚ Mg(OH)2 I. Describe Sample a. Quick description of sample. Ex: Phase‚ color‚ odor‚ crystalline‚ amorphous‚ gel-like‚ powdery‚ etc. II. Flame Test a. Part 1 i. Orange Flame: Na+ is present. K+ ‚ NH4+ ‚ Ca2+‚ Mg(OH2)62 ‚ Al(OH2)63+ may also be present. ii. Purple Flame: K+ is present (no Na+
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Control In addressing new laws of gun control‚ one has to look at both sides of the argument. How will new guns laws affect violence in schools and on the ... state in the U.S. has their own divided opinions on gun control‚ but more importantly‚ what are its effects on the residents of Alaska? To begin‚ looking into how gun control began within history is mandatory to fully understand the issue. As to be most obvious origin of gun control‚ is the ratification of Constitution of the United States
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What Works in Social Marketing to Young People? Systematic Review for the Health Research Council of New Zealand and the Ministry of Youth Development Final Report July 2010 Louise Thornley and Kate Marsh Quigley and Watts Ltd This systematic review is part of the ‘What Works in Youth Development’ series‚ and was cofunded by the Health Research Council of New Zealand and the Ministry of Youth Development as part of the Health Research Council of New Zealand’s Partnership Programme.
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Fear of the Unknown Lord of the Flies By: Sam Baldwin 2012-05-22 Ms. Reis ENG30S Fear is one of the most powerful emotions that control the way any human being acts in certain circumstances. A distressing emotion aroused by impending evil and pain‚ whether the threat is real or imagined is described as fear. One of many prominent themes in William Golding ’s novel‚ the Lord of the Flies‚ is Fear of the unknown. From the beginning of the novel‚ the boys fear what they cannot see‚ the parts
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The identification of an unknown bacterial environmental isolate through a series of morphological‚ physiological and differential exercises. The purpose of the environmental isolate report is to learn what is necessary in order to take an unknown environmental isolate (EI) and identify it. This was achieved through a series of exercises that provided information on the morphological‚ physiological and biochemical traits of the EI which were then compiled and interpreted in order to make a presumptive
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account of the American Revolution‚ muddling and radicalizing its center story as "a people’s upset‚ a change among the most heterogeneous individuals to be discovered anyplace along the Atlantic in the eighteenth century." The characters in The Unknown American Revolution "looked toward a redistribution of political‚ social‚ and religious power; the disposing of old organizations and the production of new ones; the toppling of instilled examples of preservationist‚ elitist thought; the leveling
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Chemical T ests for Unknowns Chemical tests have been developed as a means of identifying what functional groups are present in an unknown compound. Since IR and NMR spectroscopy has been developed‚ they are no longer critical to unknown analysis‚ but they can still be useful for confirming what you have determined by spectroscopy. Some of them look cool too! In order for a chemical reaction to work as a chemical test‚ it must 1) create a visible result (a color change‚ a precipitate‚ etc)
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bath for 10 minutes. The aspirin was collected by vacuum filtration. After it dried‚ it yielded 0.93 g (30.9 % of original Panacetin). Isolation of Unknown: 71 mL of boiling H2O were poured int an Erlenmeyer flask with 0.93 g of unknown to dissolve it. After reaching room temperature‚ the flask was placed into a bucket with ice and DI H2O. The unknown was collected by vacuum filtration‚ rinsed with ice water‚ and dried to constant mass at 0.72 g. 13C NMR (100.13 MHz‚ acetone-D6): σ 15.5 (s‚ Me)
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-1Determination of an Unknown Liquid (2-butanol) Through Fundamental Analysis Lee Billips Department of Chemistry‚ Shippensburg University‚ 1871 Old Main Drive. Shippensburg‚ PA‚ 17257. Abstract: The identification and characterization of unknowns are an important part of organic chemistry. It is fundamental to know experimental methods to deductively identify compounds (1) . The determination of unknown #6 (2-butanol) was identified by a series of test; first taking the boiling point (94-96
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