The identification and characterization of the structures of unknown substances are an important part of Organic Chemistry. In this experiment a sample of an unknown aldehyde or ketone was obtained. From this sample two solid derivatives were prepared. Their melting points were obtained and compared to those listed in the Table of Aldehyde & Ketone Derivatives. From this the unknown sample was identified. As additional aid a Benedict’s test and Iodoform test were used. These are functional group
Data Analysis Identifying an unknown substance can be accomplished with the use of multiple scientific tests. Conducting these experiments will narrow down the possibilities of the unknown compound. The number of the unknown substance that I was given was A84841BIR, It posed to be a challenge since I needed to test three different molecular combinations for this specific substance. Once the number of moles the in substance was calculated using the ideal gas law, I divided it from the sample mass
Report Purpose:- The purpose of the lab is to perform series of tests to determine the physical and chemical characteristics of several unknown powders, and then use that information to classify the unknown powders. Hypothesis:- I believe that by testing substances with various chemicals, for example, vinegar, iodine and that will help to find out what the substance is and what is it quality. Materials:- In order to perform this lab, you need:- • Litmus paper (red and blue). • Vinegar • Biuret solution
identify the six unknown substances, the experimenter must perform multiple tests. Such as solubility tests (water and hexane), melting point, conductivity, and bond type. The solubility test will narrow down the list of potential unknown substances, given in the packet, by considering the characteristics of the unknown substances. For instance, unknown substance #2 was tested in both water and hexane solubility; at the end of the trial of solubility tests of unknown substance #2 resulted only soluble
of the amount of mass that have a specific volume. Density is used for identifying substances. Density is reported as g/ml or g/cm³. This lab will focus on measurements. Mass and volume are physical properties that can be easily measured. In the lab, the mass was measured in grams and the volume was measured in ml. Limitations on results The percent error when
Analysis: Lab 1 Identifying Carbohydrates There were many ranges of color changes in the Benedicts test and Iodine stain. For the Benedicts test, this oxidation/reduction response changes the arrangement of the reducing sugar creating a colored precipitate. The change in color is correlated to the first concentration of the reducing sugar. For the iodine test, the three dimensional structure of various polysaccharides permits them to react with the iodine stain to produce a certain color. As far
tube clamps, a grease pencil,6 test tubes, a tube rack,6 unknown substances, and Benedict’s reagent. There was a hot plate and beaker of water already set up. I started by numbering the test tubes 1-5 with the grease pencil and left one for water as the control. I turned on the hotplate and prepared the beaker of water for the bath I would need later in the experiment and let it heat up. While that was boiling I added 5mL of unknown substance 1 to test tube 1 and continued with 2-5 and the water tube
The first is to identify the unknown compound by identifying its physical and chemical properties. Using various tests, the collected can be used to compare compounds to the UWC. The second part of identifying the compound is synthesizing the compound and then testing the created compound. The information gathered from days one and two were used to compare and verify the results. Introduction: Given the unknown compound, the goal was to find out exactly what the unknown compound is. By only having
includes conducting tests of melting point, flame color, solubility and the conductivity in water (H20). The melting point of a substance is the temperature at which the material changes from a solid to a liquid state. The determination of melting points is a form of identification and test method for organic substance. The melting point is an easy way measure and classify substances. Testing the flame color is an appropriate test as metal ions change the color of a flame when they are heated. Different
Identifying Organic Compounds Joe Harris 11/12/07 1. Background Organic compounds are, by definition, any chemical compound containing carbon. These compounds include carbohydrates, polysaccharides, lipids, proteins, and nucleic acids. Each one of these compounds has a different purpose. Carbohydrates give energy to cells when consumed. Lipids are basically the