Heterocyclic compound Essays

the heterocyclic compound having one hetero atom Two hetero atoms Figure 1.4: Structure showing the heterocyclic compound having two hetero atoms 6-membered ring containing heteroatom11 Figure 1.5: Structure showing the six membered heterocyclic compounds Unsaturated and saturated heterocyclic compound12 Figure 1.6: Structure of saturated and unsaturated heterocyclic compounds 1.7 AZOLES Azoles are the class which contain five member ring, having nitrogen heterocyclic ring compound containing

During the circle time, Caydence sing a song along with her peers, ABC Song, “A,B, C, D, E, F G, H, I, J, K,….O,P, Q, …., my A, B, C, ne…..sing wit.. me.” Next, the teacher uses the cards of shapes. When the teacher shows cards of shapes and everyone says the names of shapes, Caydence says, “Circle, star, square....”: she does not say all names of shapes. Then the teacher shows the cards of colors, Caydence says, “Red, blue, yellow, green, orange, pink, purple…” as the teacher shows the cards:

Analyses - Let America Be America Again Langston Hughes uses a varied meter in “Let America Be America Again”. In the first line and title of his poem he starts with the first syllable [let] stressed, followed by a unstressed syllable [a]. This trochaic dimeter is used just for the first four syllables, following a iambic tetrameter starting with [ca] unstressed and [be] stressed. The second line starts with a trochee, but this time with eight syllables, therefore a tetrameter. The last syllable

It is “foolish men” who fail to see that acute insightfulness is a vehicle for precise thinking. Nevertheless, the speaker shuns drawing conclusions about whether the creation of art contributes to, or ease madness, by attributing her speculations to theories others have proposed. In the final lines of the poem, however, she endorses the decision to explore dark corners of the mind and expand the limitations of the self by drawing attention to the affective dimension of the work, the beneficent effect

The Red Wheelbarrow The Red Wheelbarrow is a poem written by an American poet called William Carlos Williams. Initially, the poem was published without a title, and the poem is in form of verse form. Williams in his writing constructs an image within the readers mind. The author uses simple words to construct a poem that is basically based on imagery philosophy. Williams’s poem is all about a red wheelbarrow that is painted in the readers mind in order to create a flamboyant picture. The Red Wheelbarrow

The poem “A Fit of Rhyme against Rhyme” is a response to Samuel Daniel’s prose essay A Defence of Rhyme, in which Daniel describes rhyme as an “antidote to endless motion, to confusion, to mere sensation, to the sway of the passions” (Reading the Early Modern Passions: Essays in the Cultural History of Emotion, 146); while Jonson’s response describes rhyme as a “rack of finest wits, that expresseth but by fits true conceit” (1072, 1-3). Jonson’s poem ironically uses rhyme to ridicule rhyme in a

Healthcare employee safety is very important and should be a high priority. In the healthcare setting the employees must pay attention to his or her surroundings. This essay will include several objectives such as injury prevention, emergency readiness, and training. Keeping the employees safe is not easy while working in the environment full of dangers. I will discuss the importance of employee training, personal safety, safety slogans, environmental safety and informational posters. INJURY PREVENTION:

French fries shouldn't be served in school cafeteria Without a doubt, French fries are one of America's favorite food and a huge part of the fast-food chain. French fries may seem the least of all evils when perusing a restaurant menu but what people may or may not know is that a medium order of fries has 365 calories along with 17 grams of fat which equals 26% of your daily value and 10% of the upper limit you should eat in a day. Haven't you ever asked yourself where do French fries come from?

Chemistry, compounds are defined as any substance that is composed of atoms of two or more elements that are combined in fixed ratios. Compounds can often be reduced in order to separate their elements and study their properties. Compounds such as water (H2O) and Carbon Dioxide (CO2) for example, both contain oxygen and can therefore undergo a process of decomposition that will isolate the elements in order to calculate the quantity of each element and molecule present in the compound. Any compound with

Physically, the unknown compound was composed of white, grainy, crystal-like structures. The unknown was also odorless. From these observations, various physical and chemical testing was performed to determine properties of the unidentified compound. A series of solubility tests were performed, as shown in Table 2, and revealed that the unknown compound was soluble in water, but not in Acetone or Toluene. Because the compound dissolved in water, it is known that the compound is either polar or ionic3

and mixtures. A pure substance is a substance with a fixed structure. We can classify a pure substance by its physical properties such as melting or boiling point. A pure substance is seen as an element or a compound. You can find the element information on the periodic table. And a compound is made up of multiple elements. A mixture does not have a uniform structure and has more than one substance in it. A substance can be classified as homogeneous or heterogeneous. A homogeneous mixture is described

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The purpose of this lab was to learn how to design a lab and different separation techniques. This was learned by separating a mixture. The purpose of the lab is important because it gives a better understanding on how to design a lab and separate a mixture. The scientific method played a major role in the lab as it helped create the lab. Background information was gathered on each of the substances (salt, sand, iron filings, poppy seeds). Using this information helped to form ideas on separation

The central purpose of this experiment was to determine the experimental empirical formula of an oxide of magnesium by performing a synthesis reaction. It was hypothesized that the formula that was derived from the recorded data would be identical to the theoretical empirical formula. After performing calculations with the data that had been collected within the duration of the experiment, it was deduced that the empirical formula of the product generated by the synthesis reaction was Mg5O6. Since

In the talk, “Adventures in Organic Chemistry – Over Three Decades of Synthetic Organic Chemistry” presented by Dr. Chris Condeiu, he tried to relate the industry of organic chemistry to a students’ perspective. Three major points were drawn out through the talk. The first was the perspective of how capitalism drives the industry and the mechanism of doxycycline was formed. With an overview of his talk, the expectation was that a deeper understanding of how pharmaceutical drugs’ mechanisms are formed;

an Unknown Compound using Quantitative and Qualitative Analysis Lauren Tremaglio Chemistry 1011 Lab, Section 16 Instructor: Steven Belina October 3, 2014 Our signatures indicate that this document represents the work completed by our group this semester. Experimental Design and Discussion of Results The objective of this experiment was to identify an unknown compound through quantitative and qualitative analysis. In order to find the identity of the unknown compound, an initial

this test left 3 possible compounds; NaHCO₃, Na₂CO₃, and CaCO₃. Next the compound was tested with iodine and the solution turned yellow showing that now there was two compounds that could be the identity of unknown powder E; NaHCO₃ and CaCO₃. After that compound E was tested for being soluble in water, the powder was soluble, this proved that unknown element E is NaHCO₃. Unknown Element K was also first tested following the steps for the phenolphthalein test and the compound turned clear, this test

During the Mixed Substances lab the objective was to see how many properties of individual substances compare with properties of mixed substances. From here on the words that would help you along the way of the lab for your research is mixture, homogeneous mixture, and last but least heterogeneous mixture. The hypothesis or guess on what would happen when the water is mixed with the cornstarch, is the cornstarch and water will mix and form a new liquid/solid. However, the Investigating Mixtures lab

then it would be Sodium Chloride and if it were basic then it would be Sodium Carbonate. However, if the colour of the flame test was light lilac then the chemical is Potassium Chloride and if the colour of the flame did not change at all then the compound is

chemicals .Other people were given an unknown substance and were trying to figure out what there unknown solid was as well and there was duplicates of the same solids.The goal is to find the group that best matches our result and compare to see if the compound is the same. Introduction The physical property of the unknown substance given was a white clumpy powder.The first test was testing the electric conductivity of the substance.To show the conductivity of the substance we mixed it