Then you put the remaining liquid (neutral component mixture) through the suction filtration funnel to isolate the crystals. After 10-15 minutes, the crystals will be dry and you can weigh them and find their melting point. How is the neutral component of your 3-compound mixture isolated from the final methylene chloride solution? 16 of 22 4/16/12 9:15 PM StudyBlue Flashcard Printing of Lab Final 2211L UGA http://www.studyblue.com/servlet/printFlashcardDeck?deckId=... Name the four active ingredients that we will be testing for in the TLC of Analgesics lab: Ibuprophen Caffeine Acetaminophen Acetylsalicylic acid What solvent system will you be using to dissolve the common analgesics (power) in preparation for TLC spotting? Methylene chloride: ethanol (1:1 solution) What solvent system will you be using to "develop" your TLC plates in the TLC of Analgesics lab?
Stoichiometry is a section of chemistry that involves using the relationships between reactants or products in a chemical reaction to determine the desired quantitive data. 4. Using the balanced chemical reaction between Sodium carbonate and Calcium Carbonate given in page 92 of your lab manual (first paragraph of procedure), find the mass of Sodium Carbonate (in grams) needed in reaction? Na2CO3(aq)+CaCl22H20(aq)-CaCO3(s)+2NaCl(aq)+2H2O Date:_____3/30/2015____________ Name______Chloe Flake______________ 1. Title: 1pt Stoichiometry Of A Precipitation Reaction 2.
Reactions Lab David Vaghari INSTRUCTOR: Dr. Chernovitz Monday, July 23, 2012 Oxygen Production Introduction In this lab, potassium chlorate will be decomposed producing oxygen gas and potassium chloride. The hypothesis is that the reaction will yield 3.916 grams of oxygen gas. Materials Test tube 10 grams potassium chlorate Bunsen burner Procedure Step 1. Obtain a test tube, place a 10 gm of potassium chlorate. Step 2.
Radu Purtuc | Chemistry 231 - Lab | Section 32 Ronnie :: team-member TECH 705, SEPARATING ACIDS AND NEUTRAL COMPOUNDS BY SOLVENT EXTRACTION - MACROSCALE EXTRACTION July 6, 2006 Lab Report INTRODUCTION Purpose: using extraction technique to separate acetanilide, p-toluic acid, and p-tert-butylphenol; then measure the melting points of each compound and comparing them to the statistical values. Background: separating acids and neutral compounds by solvent extraction is a useful technique used in practice by chemists to separate organic compounds from mixture of other compounds. It generally involve several steps, with limiting factors being the number and output purity of compounds to be extracted from source mixture. A number of specific compound solvents not inter-miscible are used to separate and dissolve compounds, and a physical transfer between solvents is employed. An example of use is cleaning compounds of impurities, where different solvents work as a molecular filter that interacts differentially with compound and impurities respectively.
In 1989, EPA removed approximately 70,000 cubic yards of shingles from the Bay Drum site in order to evaluate the extent of soil contamination. The EPA conducted a second removal action in 1990 and removed contaminated soils, drums of hazardous waste, and bags of pesticides from the site. Clean up on OU1 and OU3 began in 2000 and were completed in 2001. Implementation of the amended clean up of OU3 began in the Spring of 2005 and the ground water data indicates that the vegetable oil was performing as expected and will likely be in place for a considerable period of
All of these solutions have many issues. Hydrogen needs more technology and about fifty years to become cheap and available. Bio-diesel would do more harm than good using food for fuel instead of for worldwide hunger. Solar and wind power would take a lot more development of gathering this natural resource and would take time. The only way to face this problem is head-on.
Explain why oil exploration in the areas shown could lead to high economic and environmental costs (10) Oil exploration is the extraction of petroleum from reservoirs underground and using the substance to benefit people. For example using it for transport and industry. However continuous exploitation can lead to costs, which can be both economic and environmental. Figure 1 shows that Canada is a location that is currently exploiting oil, 170 billion barrels per year. With Canada being second to Saudi Arabia to have the largest stores of oil in the country, it can provide large amounts of oil without the need to dig large mines to get to it.
This coupled with an increase in living for the majority of the world, especially RICs such as India where its oil consumption had increased by 40 million tonnes over a 6 year period, makes supplying the world’s energy demands a very difficult task. The main source of energy for the majority of the world comes from fossil fuels; however this reliance is a large cause for concern as these are finite and cause great environmental damage. It is believed that we have reached peak oil production, meaning that we are producing more than we ever have or ever will in the future. It is thought that at current levels of consumption we only have 40 years of oil supplies remaining. Resulting in increasing prices and increased reliance on unstable oil rich nations that can limit supply so as to earn
CHE 326 Experiment 2 Nitration of Methyl Benzoate I. PRE-LAB (please complete before coming to lab, should be typed, 1 page limit) [pic] A. Table of Reagents (fill in all the blanks as described in the instructions). |Compound |Mol. Weight |mmol |amount |melting point |density |Ref. | | | | |(in g or mL) | | | | |methyl benzoate | | | | | | | |nitric acid | | | | | | | |sulfuric acid | | | | | | | |methanol | | | | | | | |methyl 3-nitrobenzoate | | | | | | | B. References (provide references for the information you've given in the table of reagents) C. Safety (are any of the reagents used toxic or hazardous?
Australia has recently signed to Kyoto Protocol which aims to reduce greenhouse gas emission by 4 million tonnes becoming 2010. Companies have improved scrubbers, which clean sulfur from the smoke before it leaves the smokestack. Awareness is growing when considering pollution from coal. Here in Australia while we are monitoring carefully the atmospheric pollution caused by coal burning it can be stated categorically that Carbon dioxide emissions from vehicles have far more reaching effects than the pollution created from coal. Coal will continue to be used extensively in Australia because of it's abundance.