Solid-liquid extraction and liquid-liquid extraction of caffeine from tea leaves Andrew Jensen Lab partners: Jamie Pawluk‚ Joe Luong 230105559 Chem 250 L2 Oct‚4‚2012 Introduction: Extraction is the experimental procedure of obtaining a desired compound with the use of a solvent from either a liquid or solid mixture. Solid-liquid extraction involves the removal of organic compounds from solid material. This method of extraction may be achieved through extraction of the organic compound
Premium Solvent Laboratory glassware Caffeine
or property of substances to mix in all proportions or thoroughly. This term is usually used in the mixing of liquid substances. [2] In the experiment‚ the students observed the solubility and miscibility of some substances. Table 1 and 2 shows the solubility of salt‚ iodine‚ sugar‚ and naphthalene in different solvents. Table 3 and 4 shows the miscibility of substances to other liquid substances. Compound Water Ethanol V. Oil NaCl SOLUBLE INSOLUBLE INSOLUBLE I2 PARTIALLY SOLUBLE SOLUBLE SOLUBLE
Premium Solubility Solvent Chemical polarity
Screen Printing: The Simpler‚ Less Expensive Method Screen printing is a method that many people use to recreate designs on t-shirts‚ pillow cases‚ blankets‚ etc. Some big companies use complex machines in order to carry out this process‚ but there are easier ways. The method of screen printing described in this set of instructions is a much simpler method that takes less time and money and generally anyone can do it. Materials: • Computer/Printer • Embroidery Hoop • Mesh/Sheer
Premium Brush Printmaking Printing
why the oil engine is very important to your vehicle engine?. It is highly advanced multi grade engine oil that has been specially engineereed to providethe best engine protection ever. The performance of ypur vehicle also very good when using engine oil. Mechanical parts inside the emgine needs oil to made it operated. All mechanicals parts cannot operated without it. It can become hots and make your engine hot and burn. This can jeoprpodize your life and your sAFETY? THAT IS WHY OUR CAR AND MOTORCYLES
Premium Liquid Internal combustion engine Petroleum
Changes of Gasoline Retail Prices from 1999-2008 Economics James Bork Chris DeShaney October 11‚ 2010 Over the period of 1980 to 2010 the prices of gasoline have fluctuated a lot from lows to highs. There were some drastic prices increases from 1999 to 2008 changing from one dollar to four dollars. After 2008 the prices suddenly fell off drastically but never have returned to what they were in 1999. The main cause for the rise and fall of prices over the years can be attributed to the supply
Premium Causality Dollar Supply and demand
EXPERIMENT TO SHOW THE EFFECT OF TEMPERATURE ON ENZYME ACTIVITY Table of raw data of experiment to show effect of temperature on enzyme activity Temperature (ᵒc) (+/-0.05) | Time taken for pink solution to turn back to white (s) (+/- 0.05) | | Repeat1 | Repeat2 | Repeat3 | Repeat4 | Repeat5 | 21 (Room Temperature) | 414.0 | 286.0 | 286.0 | 297.0 | 294.0 | 40 | 122.0 | 88.0 | 125.0 | 86.0 | 92.0 | 60 | 176.0 | 162.0 | 161.0 | 166.0 | 180.0 | 80 | 356.0 | 367.0 | 396.0 | 85.0 | 438
Premium Rachel Marco Heat
General Purpose: To demonstrate Specific Purpose: To demonstrate to my audience how to clean a pump action shotgun. Central Idea: It is important to preserve the shotgun’s integrity by cleaning the weapon after every use and to ensure the safety of the person using the weapon. INTRODUCTION: I. Who has a shotgun in this class? Do you know how to do a basic cleaning for that weapon. Well‚ Today I will show you the steps in cleaning your own personal pump action shotgun. Transition: Like many projects
Premium Liquid
Economic Labour: 3 people (8 hr. /ppl) Installation+capital cost: $1‚835‚202.809 Utility: Utilities | Quality | Electricity (pump 70 KW × 8 pumps) | 560 KW | Service water | 224‚779.5 kg/hr. | Maintenance: $13‚499 /year The wastewater from oil refinery plant will store in the decant tank before go to the CPI oil/water separator process. Due to the condition if CPI separator needs the temperature around 50°C but the wastewater from oil refinery has temperature high to 107°C.
Premium Water Heat exchanger Liquid
Ball mill as general-purpose grinding equipment is widely used in mineral dressing‚ building materials‚ chemical industry‚ etc. To make the ball mill operate well‚ and we must strictly abide by the procedures of operation and maintenance. Before starting the ball mill‚ check whether the connecting bolt‚ gears‚ couplings are tightened. Check whether the oil of the oil tank and the reducer is in the adequacy‚ and whether the lubricating device and instrumentation have problems. Determine the flow
Premium Gear Rack and pinion Liquid
1. INTRODUCTION Objectives of the project: (a) Develop a formulation of Atenolol HCL microemulsion for ocular application to decrease IOP in case of glaucoma. (b) Improve the quality of patient’s life suffering from glaucoma. (c) Reduce the number of dosing per day. 1.1 Eye "If a physician performed a major operation on a seignior (a nobleman) with a bronze lancet and has saved the seignior’s life‚ or he opened the eye socket of a seignior with a bronze lancet and has saved the seignior’s eye‚ he
Premium Liquid