1.
Characterization has been established to show the relative success of the procedure as a pure product has been shown to be essential to any further synthesis or procedural success.9 A range of expected extinction coefficients has been prescribed to determine if emitted photons of excited electrons are consistent with the 103 C 105 molar absorptivity which would be permissible from the pure product.1 Cobalt percent determination by comparison to potassium cobaltinitrite (K3Co(NO2)) synthesized from the Co(acac)3 product has been identified to establish if the desired product with the appropriate percentage of cobalt was realized.1 Infrared spectroscopy has been used to determine if the activity of the product molecule is consistent with expected activity of a pure Co(acac)3 sample.1 Nuclear magnetic resonance study has been utilized to determine purity of the final product by means of comparison of expected hydrogen atom interaction ratios to that of the final experimental product.1.
Purpose.
Recrystallization was performed to eliminate impurities as the final mass of the product is used in percent yield and other calculations. Melting point, ultraviolet and visible light spectroscopy, infrared spectroscopy, and nuclear magnetic resonance readings were all applied to determine if Co(acac)3 had been synthesized correctly and how pure the final product was.
Experimental .
Procedure.
Two and a half grams Co(II)CO3 was mixed with 20.0 mL acetalacetone and heated to 90 degrees C. To the solution, 30.0 mL of 10% hydrogen peroxide (H2O2) was added dropwise and stirred on the hotplate until obvious visual reaction stopped and entire solution had turned green. Product was cooled for 30 minutes in an ice bath and then gravity filtered. The dry weight of the crude product was measured to be 6.429g, and the melt temperature was measured to be 200 C C 204 C.
Recrystallization was completed with toluene and petroleum ether.
Cobalt Cobalt is a brittle, hard, transition metal with magnetic properties similar to those of iron. Cobalt is present in meteorites. ... Cobalt is mined throughout the world. ... Cobalt in Central Western Queensland. ... Cobalt 60 is used to treat cancer. ...
Cobalt based Superalloy An analysis of each material will be given in which I will explain the reasons why I chose it. ... Cobalt based Superalloy: The main elements of this alloy are Cobalt (Wt. 40%), Chromium (Wt. 20%), Iron (Wt. 16%), Nickel (Wt. 15%), and Molybdenum (Wt. 7%). A superalloy is a nickel, iron-nickel, or cobalt based alloy that have excellent heat, creep, and corrosion resistance. ... Cobalt has characteristics of being hard and brittle, but mixing it with other elements makes it strong and durable. ...
Important to understand is that Kant's three synthesis are actually the same single synthesis being described in different ways. ... "Synthesis" means the act of combining something. The three synthesis to be discussed can be thought of as a priori conceptual synthesis which serve as experience conditions. ... It is to be directly related to the second synthesis. ... The synthesis of apprehension and the synthesis of reproduction are bound together because they both makeup the transcendental acts of the mind. ...
Protein synthesis is the process of transferring information from a gene to a protein. ... RNA is a single-stranded nucleic acid molecule involved in protein synthesis, the structure of which is specified by DNA. ... These two main processes of protein synthesis, transferring information from a gene to a protein, are transcription and translation. ... Translation is the synthesis of a polypeptide, occurring under the direction of mRNA. This is the complex process of protein synthesis where the cell's proteins are always inside under specific instructions. ...
Medieval society developed a new way of living and viewing life, known as the medieval synthesis. The medieval synthesis was an outlook on life introduced by Thomas Aquinas that reformed the earlier ideas of logic and reason into a more logical and meaningful view on life, this can be seen in everyday medieval life by education, religion, and law. ... Religion was a crucial part to medieval society and development of medieval synthesis. ... Thomas Aquinas' theory of morality and law set a precedent for a new European law The revival Roman Law was the last part of medieval synthesis. R...
Characterization in "Great Expectations" In the book Great Expectations, Charles Dickens uses many forms of characterization to reveal his characters. ... Charles Dickens uses direct, and indirect characterization. ... The author proves this trough indirect characterization when Estella says, "You little coarse monster, what do you think of me now?" ... The author uses direct characterization when he shows how Pip describes the way that Estella speaks in a "taunting manner". ...
Lab Report for Chemical Reactions Experiment Objective: In this experiment students will attempt a number of different reactions. The students will confirm that a reaction did/did not occur by detailed observation, and predict the products of each reaction by performing basic tests. Hypoth...
Tolkein's characterization of Bilbo can be classified into three methods: physical description, mental process, and actions. ... In a reader's mind the most necessary form a characterization is a physical description. ... At this point, Tolkien uses his last method of characterization; Now the reader will learn how Bilbo acts. ... Through physical characterization, Bilbo took shape. With mental characterization, Bilbo became understandable. ...
Characterization is the process by which writers create, reveal, or develop their characters. ... Characterization may be achieved through what other characters in the story say. ... Characterization is an important element in almost every work of fiction, whether it is a short story or a novel. ... Without proper characterization there would be little meaning to the piece. Stories need strong characterizations both to help move the plot along and to create an emotional context to which the reader can respond. ...