Physical Chemistry Lab Report Example | Topics and Well Written Essays - 1750 words - 1

Physical Chemistry - Lab Report ExampleTechnically, incorporation of lead into the brass increases the mechanized properties the alloy. On the other hand, substantial concentration of copper imparts germicidal and antimicrobial properties into the brass alloyi. In laboratory settings, methods used to quantitatively determine the amounts of heavy elements in alloys include Gravimetric analysis, Anodic Stripping Voltammetry, and Atomic Absorbance Spectroscopy among others. Each of these quantitative tendency methods possesses particular advantages, setbacks, and accuracy and precision takes.In the experiment, Atomic assiduousness Spectroscopy was used to measure the amounts of lead and copper in brass. Atomic Absorption Spectroscopy is a versatile quantitative technique capable of analyzing aim of over 70 elements. Technically, this technique functions by exploiting the atomization properties in form of electronic transition of elements atoms in gaseous phases. After atomization, light absorption level of atoms is detected and Beers law of absorbance vs. concentration is used to determine the quantity of analytes in the atomized samples. Besides Atomic Absorbance Spectroscopy, the experiment employed Gravimetric analysis in the determination of lead in brass. Despite being one of the oldest methods in quantitative analysis, the gravimetric technique remains accurate and precise when used for determination of metals with insoluble salts like lead. Finally, the experiment employed Anodic Stripping Voltammetry in determination of copper. Anodic Stripping Voltammetry relies on the electric conductivity of analytes, and is specifically desirable for quantitative analysis of minute traces of heavy metalsii. Subsequent sections of this lab report contain procedural steps, results and discussions pertaining to application of the three aforementioned quantitative determination techniques. found on theoretical procedures provided, stock solutions of unknown brass,