Before conducting the experiment‚ the online simulation was used to determine which substances were endothermic or exothermic when dissolved in water. According to the simulation‚ sodium chloride and ammonium chloride was observed to be endothermic. Calcium chloride‚ sodium acetate‚ sodium carbonate‚ and lithium chloride was observed to be exothermic. As sodium chloride and ammonium chloride was observed to be endothermic‚ those two salt substrates was not used in the experiment as the goal of the
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PEREGRINO‚ Marianne ECON103 MK2A REACTION PAPER UNEMPLOYMENT IN THE PHILIPPINES According to Philstar.com‚ unemployment rate in the Philippines rose to 7.5 percent in April from last year’s 6.9 percent. The National Economic and Development Authority (NEDA) said the country’s unemployment rate increased by 0.6 percent due to a lower level of employment amid a slightly higher labor force level. Majority of the unemployed were high school graduates (31.7 percent)‚ college graduates (21
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Reaction Paper On The Ice is an engrossing and suspenseful movie about two teenage boys. The boys grew up together in the town of Barrow‚ Alaska. One morning the boys (Qalli and Aivaaq) set out for a seal hunt with a friend (James). An argument took place that ended up in a tragic accident. The boys (Qalli and Aivaaq) promised to keep this a secret. The community began asking questions‚ which brought them telling one fabrication after another which lead to feeling more guilt. Qalli had more
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3.2 & 3.3 Describe with examples how schools may demonstrate and uphold their aims and values Aims and values need to be promoted as much they can whether it’s in school literature or on their website. This is where parents and others first go on to create their first impression of the school. They can promote it by creating links with the local communities and working together. There are many ways to promote aims and values. Some events my school does are: • Charity fundraising events • Work of
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Discussion The reaction through which 4-mrthaoxyacetophenone is converted to 4-methoxybenzoic acid is a haloform reaction. This reaction involves two distinct stages that occur in the same environment. The first stage occurs through the based-catalyzed halogenation of the ketone that forms a trihalo ketone. First‚ the bleach is transformed into chlorine and hydroxide ions through the following reaction: Then‚ the hydroxyl is able to attack the rather acidic (pKa ~ 20) α-hydrogen of the ketone
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Experiment 3: Wittig Reaction Introduction This experiment performs a modified Wittig reaction using a phosphorus-containing Hornes-Emmons-Wittig reagent to generate an enolate anion of trimethyl phosphonoacetate instead of a phosphorus ylide. The methyl trans-4-methoxy cinnamate produced is then analyzed using melting point and 1H NMR spectroscopy. Theory The Wittig reaction prepares alkenes from carbonyl compounds by attacking a phosphorus ylide with a nucleophilic carbon atom stabilized by
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REACTIONS OF HYDROCARBONS Diane Cate Satsatin Biology Student‚ Biology Department College of Science‚ De La Salle University-Dasmarinas ABSTRACT Five substances which are Hexane‚ Eugenol‚ Unknown hydrocarbon 1‚ Unknown hydrocarbon 2‚ and Acetylene gas was used for the selective reactivity of hydrocarbons to functional group tests; Bayer’s test‚ Bromine test light‚ Bromine test dark‚ and Tollen’s test. In Bayer’s test‚ only Acetylene‚ Eugenol and Unknown hydrocarbon 2 reacted positively
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AQUINO’S INAUGURATION Amid cheers‚ Associate Justice Conchita Carpio-Morales administered Aquino’s oath of office at the highly yellow Quirino grandstand‚ minutes short of the 12:00 time as mandated by the Constitution. A 21-cannon salute was delivered after Aquino’s oath while two choppers showered the crowd with yellow rose petals. Fr. Catalino Arevalo‚ the family’s spiritual adviser‚ held the bible where Aquino symbolically placed his hand as he delivered his oath. Earlier‚ Vice President
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1. Read and respond to the 5 situations below‚ describing what you would recommend given each situation‚ and using at least one of the ethical frameworks or theories discussed in Ch. 12 for each scenario. Submit your answers in a Word document. -------------- Situation 1 The help desk is part of the group assigned to Doug Smith‚ the manager of office automation. The help desk has produced very low quality work for the past several months. Smith has access to the passwords for each of the help desk
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REACTION PAPER (ON-PREMISE CATERING) During our on- premise‚ I’ve learned a lot of things like how to prepare that kind of event‚ how to set up‚ how to prepare everything. And to become success the event we must cooperate‚ be unite so that would finish as soon as possible‚ that day were so busy‚ each everyone of us was working‚ but there are some times who are not working‚ of course we can’t avoid that‚ but we are trying our best 2 finish it. There program was started‚ everyone and everything was
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