As we know‚ the TLC is a separation technique that has two phases: the stationary phase and mobile phase. The stationary phase is silica gel (SiO2) which is very polar compound‚ while the mobile phase is 0.5% acetic acid which has less polar. Also‚ as we know‚ the compound will rather to stay with stationary phase or travel with mobile phase depend on its polarity. The result show as that the polarity of the solvent is the key factor for the compound to travel with it or stay in stationary phase
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Distilling a Mixture of Cyclohexane and Toluene Lab partner: Chemistry 211 2/08/12 Goal: The purpose of doing this experiment is to separate a sample of cyclohexane and toluene using simple miniscale distillation. The objectives will be to record boiling range and volumes (mL) of distillates that are acquired during the distillation process. It is expected that cyclohexane boils and distils before toluene. By gathering these measurements will allow us to determine refractive index
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| Separation of Nitrophenols | | | | Abstract: Using a micro scale steam distillation we separated ortho and para-nitrophenol from a mixture that was already made. After the para and ortho were separated we measured their melting points and compared it to the literature values for purity. For ortho-nitrophenol we had 60% recovery and for para 160% recovery. Our melting point ranges were ortho: 45-46°C and para 64-95°C. Introduction: Nitration: In phenols‚ -OH group strongly
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The separation scheme was created by centrifuging a controlled sample of one of the ions or anions combined with one of the reagents such as NaCl. It was found that it could be separated out after centrifuging and would result in a sample without the ions or anions if it precipitated. With the data from week one a method of adding the reagents in a certain order would result in the ability to separate all ions or anions out of a solution. Overall‚ knowing how the cations or anions reacted with certain
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Climate change is a significant and lasting change in the statistical distribution of weather patterns our periods ranging from decades to million years.Climate change is realit happens all around the world and it cause by the greenhouse effect‚which is warming of the surface and lower atmosphere of a planet as earth or venus that is caused by conversion of solar radiationinto heat in a process involving selective transmission of short waves solar radiation by the atmosphere‚its absorption by the
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Tittle: Separation of leaves pigment. Introduction The photosynthetic pigment is used to absorb light during the process of photosynthesis. There are five pigments usually found in spinach leaves: Carotene (yellow)‚ Phaeophytin (yellow-grey)‚ Xanthophyll (yellow-brown)‚ Chlorophyll a (blue-green)‚ Chlorophyll b(green). Photosynthetic pigment is located in the chloroplast of the leaf. The function of chlorophyll a and chlorophyll b is to trap red and blue violet light when they carry out photosynthesis
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2 MARKS & QUESTION- ANSWERS VI semester EI 336- Industrial Instrumentation -II PREPARED BY: M.V. MINI UNIT 1 1) Define Viscosity. It is a measure of fluidity of the system. Many fluids undergo continuous deformation with the application of shearing stress. 2) Define Newtonian fluids If the force flow relation is linear then the fluid is Newtonian . 3) Define Non Newtonian fluids If the force flow relation is non linear then the fluid is Newtonian . 4) Define Kinematic Viscosity
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Legalize Industrial Hemp General Purpose: To inform the class on why industrial hemp is illegal and the benefits of legalizing industrial hemp. Specific Purpose: To provide my audience with a better understanding of how useful industrial hemp could be for the economy. Central Idea: Due to the war on drugs‚ hemp production is severely limited; however‚ with the proper legalization and regulation of this plant the U.S. economy would prosper due to job creation and the environment would benefit
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the United States Environmental Protection Agency as “wastewater - treated or untreated - that flows out of a treatment plant‚ sewer‚ or industrial outfall. Generally refers to wastes discharged into surface waters”. The Compact Oxford English Dictionary defines effluent as “liquid waste or sewage discharged into a river or the sea”. Sources of Industrial Effluents Iron and steel industry : Contamination of waste stream includes chemicals like benzene‚ naphthalene‚ anthracene‚ phenols‚ cresols
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Justin Grzechowiak Essay #1 During the second industrial revolution the U.S. was expanding and advancing rapidly. This ultimately led to a lot of corruption and most importantly a very unequal distribution of wealth amongst the people. The factory owners of this time period were living lavishly while their hard working employees were struggling to put food on the table. The gap between the rich and the poor was growing just as fast as the country itself. Something needed to be done about
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