Identification, Properties, And Synthesis Of An Unknown Ionic Compound

In this Chemistry Lab the main objective is to perform accurate chemical analysis for the quantity of elements and compounds in a sample. There will be a compound made then synthesized. The methods used were acid-base titrations, redox titrations, gravity filtration, and distillation. General conclusions included

I certify that the writing in this assignment is my individual work and is my sole intellectual property. It does not contain the ideas, or writing of other individuals/authors.

I certify that the writing in this assignment is my individual work and is my sole intellectual property. It does not contain the ideas, or writing of other individuals/authors.

I certify that the writing in this assignment is my individual work and is my sole intellectual property. It does not contain the ideas or writing of other individuals/authors.

The compound was tested for the presence of ammonium, carbonate, sulfate, chloride, and nitrate, as seen in Table 2. The nitrate test produced a precipitate, indicating the presence of the nitrate ion in the compound. At this point it was hypothesized that our unknown compound was calcium nitrate.

This assignment represents my own work. It is not a recycled assignment from another course and it has not been purchased, borrowed, or obtained from another source. Nor has any part of it been plagiarized. I did not include sections written by or summarized by other students. I have not shared any part of my paper with other students. I have made myself familiar with the definition of plagiarism and I have properly documented and cited all of the referenced data and quotes in the

The objective of this lab was to use qualitative and quantitative measurements and observations to properly identify, and then confirm the identity of an unknown compound. After identification, the compound would have to be synthesized, in our case, through an acid-base reaction, followed by confirming its identity with the original unknown compound.

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The cations in both the known and unknown samples were identified by using qualitative analysis, of which were determined to be acidic, basic, or neutral by using litmus paper. Acid-base reactions, oxidation-reduction reactions, and the formation of complex ions are often used in a systematic way for either separating ions or for determining the presence of specific ions. When white precipitate formed after adding hydroxide, aluminum ion was determined to be present in the solution. However, nickel was determined to test positive when the solution changed to a hot pink color after adding a few drops of dimethylglyoxime reagent and iron was present when the solution was a reddish brown color when sodium hydroxide was added to the mixture at the very beginning of the experiment. Qualitative analysis determines that ions will undergo specific chemical reactions with certain reagents to yield observable products to detect the presence of specific ions in an aqueous solution where precipitation reactions play a major role. The qualitative analysis of ions in a mixture must add reagents that exploit the more general properties of ions to separate major groups of ions, separate major groups into subgroups with reactions that will distinguish less general properties, and add reagents that will specifically confirm the presence of individual

Table 1 above illustrated the anions that are taking place within the selected water samples in which the concentration of the anions is different from one type to other. The anions that present in the water samples include Cl-, F-, Br-, NO32- and SO42-; however, no PO43- anion was present in all samples of water.

The main motive of the lab was determine the unknown substances identity by its tested characteristics. Considering the results of the lab, substance #1 would be a metal since it has metallic characteristics. A few metallic characteristics are a high melting point, insoluble in water, and a good conductor of a solid and liquid. All of these characteristic are cohesive with the observations made. It had a melting point above 500°C, it did not dissolve in water, and it was a good conductor as a solid and a liquid. It also looked and felt similar to what other metals do. Since it did not dissolve in

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My signature indicates that this document represents my own work. Excluding shared data, the information, thoughts and ideas are my own, except as indicated in the references. I have submitted an electronic copy through Balckboard to be scanned by TurnItIn.com. In addition, I have not given aid to another student on this assignment.