precipitation reaction is‚ describe ways which one can predict whether a precipitation reaction would form or not‚ describe the uses of precipitation reactions in everyday activities and industries BACKGROUND INFORMATION: Precipitation is the formation of a solid in a solution during a chemical reaction‚ such as evaporation. A substance that causes precipitation when it is added to a solution is called a precipitant. This can occur when an insoluble substance is formed in the solution due to a reaction or
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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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ction paper Reaction Paper The play entitled ‘’Insect Talk’’ focused on the Global Warming issue and how it affects our ecosystem especially to insects. After watching this play‚ some thoughts about the effects of global warming enter to my mind. The negative effects of global warming are numerous‚ and we hear about them all of the time. As the earth warms‚ insects can more easily migrate to new areas. This creates a huge problem for the local environments‚ because the animals and other insects
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The Truth and Reconciliation Commission (TRC) was the best and most effectiveness and best path of achieving truth and reconciliation in the South African context. Do you agree? Discuss I agree that the Truth and Reconciliation Commission (TRC) was the effectiveness and best path of achieving truth and reconciliation in the South African context. The TRC was established under the Government of National Unity (GNU) and was finalised by an act of a parliament
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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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Reaction Paper — Fiction: Short Story “The Jilting of Granny Weatherall” is a small story written by Katherine Anne Porter‚ the American writer. It was published in 1930 along with other short stories alike‚ as part of story collection called “Flowering Judas”. The reaction to this fiction story from a reader’s point of view I’m going to express in this short essay. The whole setting of this story is drawn around the bed of Ms. Weatherall‚ where she is spending the last moments of
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E XPE RIME NT 4 . 5 Reactions of acids Aim To investigate and compare some reactions of a strong acid‚ hydrochloric acid‚ and a weak acid‚ ethanoic acid (common name‚ acetic acid) Equipment Dropper bottles containing: • 0.1 M hydrochloric acid‚ HCl • 0.1 M ethanoic acid (acetic acid)‚ CH3COOH • 0.1 M sodium hydroxide‚ NaOH • 1 M hydrochloric acid‚ HCl • 1 M ethanoic acid (acetic acid)‚ CH3COOH • universal indicator solution • limewater (calcium hydroxide‚ Ca(OH)2) Marble chips (calcium carbonate
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THE FOUR NOBLE TRUTHS "Believe nothing just because a so-called wise person said it. Believe nothing just because a belief is generally held. Believe nothing just because it is said in ancient books. Believe nothing just because it is said to be of divine origin. Believe nothing just because someone else believes it. Believe only what you your self test and judge to be true." -Buddha The four noble truths exemplify the essence of the teachings of Buddha. They represent the beginning of a long
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My Reaction to Transcendentalism After reading the Transcendentalist works of Ralph Waldo Emerson and Henry David Thoreau‚ I was surprised at my reaction to them. From what I had originally heard‚ the Transcendentalist works were boring essays. However‚ after reading them‚ I discovered that I can relate to many things that Emerson and Thoreau discuss in their papers. Though I liked Emerson more than I liked Thoreau‚ both of them impressed me with their ability to take such a strong stand on
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the literal definition. For‚ instance‚ if a patient is struggling against an apparently incurable ailment‚ words of encouragement and hope‚ strengthening his willpower and thereby increasing his chances of survival would better serve the spirit of truth than literally and heartlessly repeating the medical verdict. Such truthfulness is worse than an outright lie. Similarly‚ if there is estrangement between two closely related parties or persons‚ each feeling uncompromisingly righteous‚ the ends of truthwill
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