Maleic Acid And Fumaric Acid Lab Report

4- chlorobenzoic acid which was the aqueous layer has a theoretical melting point of 240-243°C, the organic layer, 4-chlorobenzyl alcohol has a theoretical melting point of 68-71°C. During our experiment we were unable to collect any data for the organic

In order to generate a bicyclic lactone in this experiment, a Diels-Alder adduct was produced. The bicyclic lactone to be generated was cis-1,3,3a,4,5,7a-Hexahydro-5-methyl-3-oxo-4-isobenzofuran-carboxylic Acid and was produced using a Diels-Alder reaction. The product was also analyzed quantitatively using percent yield. To prepare the Diels-Alder adduct 0.40 g of 2,4-hexadien-1-ol was added to a flask, then 5.00 mL of toluene and 0.40 g of maleic anhydride were added to the flask in that order. The mixture was warmed and stirred to induce a reaction. The reaction progress was monitored using a TLC plate with 30:70 hexane used as the mobile phase and silica gel as the stationary phase. The TLC plate revealed a new spot for the crude product, indicating the reaction had begun.

The mixture was transferred to an ice bath to crystallize the product, after which the product was collected by vacuum filtration on a Hirsch funnel, washing the flask with small aliquots of cold xylene and pouring the solution over the crystals, allowing the vacuum to thoroughly dry the product. Additional drying was achieved by transferring the product to filter paper and pressing the crystals to remove any excess moisture. The product was then weighed and a melting point determined. A comparative TLC was run in Hexanes:Ethyl Acetate solvent against maleic anhydride to verify the purity of the

Discussion: As seen in the melting point determination, the average melting point range of the product was 172.2-185.3ºC. The melting points of the possible products are listed as 101ºC for o-methoxybenzoic acid, 110ºC for m- methoxybenzoic acid, and 185ºC for p- methoxybenzoic acid. As the melting point of the sample

Experiment 55 consists of devising a separation and purification scheme for a three component mixture. The overall objective is to isolate in pure form two of the three compounds. This was done using extraction, solubility, crystallization and vacuum filtration. The experiment was carried out two times, both of which were successful.

The week after, a recrystallization was performed on the previous week’s crude product. The product ethereal solution was first heated on a steam bath until dry. During the heating, a beaker of methanol was collected and also placed on the steam bath. Once the product was dry, it was cooled to room temperature and then placed in an ice-water bath. The now boiling methanol was added to the crude crystals and a recrystallization was performed. Once completed, the now purified product was collected via Buchner vacuum filtration and stored in drawer to dry for a week. Afterwards, a melting point range of the purified product was obtained by using a Mel-temp apparatus. Lastly, an

Purpose: The purpose of the experiment was to perform the acid-catalyzed Fischer Esterification of acetic acid and isopentyl alcohol to form isopentyl acetate, or banana oil, which is used in flavor industries. The equilibrium of the reaction was changed by adding an excess amount of acetic acid. The reaction was refluxed and product was purified by extraction and distillation. Isopentyl acetate was analyzed by infrared spectroscopy and 1H NMR spectroscopy.

Two forms of stereochemistry can form product for the bromination of trans-cinnamic acid. Cis addition, also known as syn addition, is one way of forming product. This form of stereochemistry allows for the components of the reagent to add to the same side of the double bond. Trans, also known as anti addition, is the second form of addition that can create product for this experiment. Tran stereochemistry occurs when the components of the reagent add to opposite sides of the double bond. In this experiment, the formation of either erythro-2,3-dibromo-3-phenylpropanoic acid (trans/anti-R,S or S,R) or threo-2,3-dibromo-3-phenylpropanoic acid (cis/syn-R,R or S,S) was expected to occur.

Solubility – Very soluble (water), Freely soluble (methylene chloride, chloroform, alcohol), Slightly soluble (acetone) and Insoluble (ether).6 Melting point - 120°C or 248°F.5

Experimental Method: The molecules CH4, BF3, SO3-2, BrF3, and ICl5 were observed using three different models. The models used were the electron domain, model kit, and the Chem 3D. From each model, the molecule’s bond angle was to be recorded, as well as its molecular geometry. While using each model, what was to be taken into consideration was the ease of use. Finally, the main purpose for using each model was to observe which model was best to use for predicting bond angles. Accuracy, precision and ease were to be taken into consideration when deciding which model was the best overall.

Topics concerning transgender can be very overwhelming for some. When one thinks of the term transgender, one may think of the process of an individual identifying as the opposite sex. The opposite sex of what he or she was born as. For some, this may involve undergoing surgical procedures or taken hormonal medications to fulfill their desire. However, when thinking of this process, one automatically thinks of transgender adults. This is rarely a topic that one would assume would be racing through the minds of young children, but in fact it is. More children today than ever, are either speaking out about their identity concerns, or displaying it in their lives. In fact, according to Date Line NBC, “The handful of American doctors who specialize

What defines a person? Looks? Beliefs? Gender and sexual orientation? About 0.58% of all adults in the United States identify as transgender, which is around 1,397,150 people. Society commonly feels as though transgender people are unnatural or disgusting, and they perform hate crimes because of this fact. Why is that? How could these people target others simply because of their identity, despite said identity having really no impact on their lives? The identity itself makes the transgender person uncomfortable because does it not match what the subcortical (meaning the area of the brain below the frontal cortex) areas of the brain tell about them, and they feel the need to become the gender their brain tells them to be. Why is that so wrong? Transgender people are just as human as anyone else. They are a little different than the rest of society, but they should be treated with respect accordingly.

Conformational isomers differ in the relative position of some of the atoms in the molecule in 3Dimensional-space due to the rotation about sigma bonds.

We can see that the structural formula of a carboxylic acid can be written two ways. On the left (1), it shows all the carbon, hydrogen and oxygen bonds, while on the right (2), the carbon atom is represented by a

The combination of a carbonyl (C=O) group and hydroxyl (−OH) group on the same carbon atom results in the formation of a carboxyl (−COOH) functional group. Compounds containing at least one carboxyl functional group are commonly known as carboxylic acids, and have the general molecular formula CnH2n+1COOH. Carboxylic acids with two or more carboxyl groups are called dicarboxylic acids, tricarboxylic acids, etc. The carboxyl group is one of the most frequently occurring functional groups in chemistry and biochemistry. Apart from the carboxylic acids, the carboxyl group also parents a large family of related compounds called carboxylic acid derivatives (amides, esters, thioesters, acyl halides, anhydrides, etc.)