EXTRACTION OF METALS SUMMARY Most metals exist in compounds in rocks in the Earth’s crust. Many of these ores contain oxides or sulphides of the metals. The compounds need to be reduced to produce the metals as elements. Metals are very useful to us because of their special properties. Reduction means removal of oxygen or gain of electrons. Carbon is a good chemical reducing agent because it readily combines with oxygen‚ but it is only useful for the metals below it in the Reactivity
Premium Aluminium Hydrogen Iron
the corrupt people that find themselves in those various positions of authority by dirty means. • Nigerians should have it in mind that to curb corruption in their country‚ the first step begins from their homes; that is from the roots‚ the bottom; erasing the notion that the first step should begin from the leaders‚ the top; this single action if carried out by all the families will finally work its way to the top. • Nigerians should be enlightened to the fact that positive political change will
Premium Voting Political corruption
Distillation of Alcohol Beverages Abstract Distillation is a process wherein a liquid is heated until its boiling point while the resultant hot vapors are subsequently captured and cooled‚ and the condensed vapors are collected. Among the many types of distillations‚ the fractional method or technique of distillation was used in this experiment. A step by step procedure was followed and an amount of 3.33 % of ethanol was obtained from the sample wine‚ Mateus Rose‚ which was used. Further
Premium Ethanol Alcoholic beverage
First‚ we have our observation of hexane through its boiling ranges‚ which we observed to be around 87 to 89 degrees Celsius. It ranged from about 77 degrees in fraction 1 to about 89 degrees in the fraction 10. Next‚ the toluene stayed relatively the same temperature throughout the first 6 fractions at around 69 degrees and then drastically shot up to 100 degrees by the end of fraction 10. This is due to hexane having a lower boiling point and being able to steadily increase through each fraction
Premium Distillation
Experiment 2: Extraction – Evaluation Summary Labs reports must be typed and chemical structures must be drawn with ChemDraw. Report must not exceed three pages (including this page). Page limit does not include any attached spectra or references. ** Deductions for hand written report/structures and exceeding page limit ** Report Breakdown Data/Results: _________________ /10 Discussion: _________________ /10 Report Total: _________________ /20 Other Lab Marks
Premium Solubility Fatty acid Solvent
SOLVENT EXTRACTION Solvent extraction‚ also known as liquid extraction and partitioning‚ is a method to separate compounds based on their relative solubility in two different immiscible liquid‚ usually water and organic solvent. It is an extraction from one liquid phase to another liquid phrase. Liquid extraction is a basic technique in chemical laboratories‚ where it is performed using a separator funnel. This type of process is commonly performed after a chemical reaction as part of the work-up
Premium Acetic acid Solubility Solvent
In the experiment of distillation we separated two miscible liquids. The purpose of distillation is to identify and purify compounds. We began our experiment by setting up an apparatus for macroscale simple distillation. We used 60 ml of Cyclohexane/ Toluene. We began with the temperature at 50 degrees Celsius. Unfortunately‚ we reached an error when the compounds evaporated too rapidly. The compounds evaporated so quickly that we lost data from 2 ml to 13 ml. The heat was lowered and as a result
Premium Distillation Evaporation Water
INTRODUCTION Distillation is a technique widely used in organic chemistry for separating compounds based on differences in their boiling points. The experiment is divided into two parts: simple distillation‚ an easy set-up where a solution or a mixture of substances with different volatility is separated through exposure heat; and fractional distillation‚ which under goes a series of evaporation and condensation process to purify more complex mixtures. Raoult and Dalton Law are the two principles
Premium Distillation Ethanol
Extraction of metals The History of Metals. Metals have been used by people for many thousands of years. Gold and silver‚ found as native metal‚ were used both as jewellery and as a status symbol - nothing new there. These metals were known in the Stone Age‚ but gold and silver are too soft to be used as tools. The first really useful metal to be discovered was bronze. This began the Bronze Age. Bronze was used extensively for tools and weapons in Asia and Africa from 4‚500 B.C. (6‚500 years
Premium Oxygen Metal Iron
CHAPTER 1 INTRODUCTION 1.1 GENERAL Steam Turbine is a type of turbo machine. Turbo machine are those devices in which energy is transferred either to or from‚ a continuously flowing fluid by the dynamic action of one or more moving blade rows. In steam turbine energy is transferred from fluid to blade rows and is decreasing along the flow directions. It is power producing thermodynamics device. Steam turbine converts heat energy of steam (at high pressure and temperature) into mechanical
Premium Steam engine Energy