CHEMISTRY 101 FINAL EXAM SECTIONS 572-580 Dr. Joy Heising FORM 4N December 7‚ 2001 Directions: 1. Fill out your scantron sheet. a. Do not forget to include your SIGNATURE and ID number. b. Dept = CHEM‚ Course No. = 101 c. If you want your scores posted‚ mark A under the option column 2. Use a #1 or #2 pencil for marking the answer sheets. circles completely. 3. DO NOT write on the envelope. 4. Read each question carefully‚ then choose the best answer for each question. There is no penalty
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treated to allow them to be used by the yeast? One potential ethanol feedstock is starch. Starch molecules are made up of long chains of glucose molecules. Thus‚ starchy materials can also be fermented after breaking starch molecules into simple glucose molecules. Examples of starchy materials commonly used around the world for ethanol production include cereal grains‚ potato‚ sweet potato‚ and cassava. A great amount of ethanol fuel is currently produced by starch fermentation. This starch comes
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work with: V. Temple used distilled water‚ D. Sellers used a 20% ethanol solution‚ J. Chadwick used a 50% ethanol solution and J. Sanchez used a 90% ethanol solution. Each participant used the same procedure with their assigned solution‚ repeating it for each of five ink samples. The pens used were a Sanford Vis a vis‚ a Sharpie fine point‚ a Dixon Visaid‚ a Sharpie calligraphy and
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95% ethanol and 1.5 mL of 2 M sodium hydroxide solution to the flask 5)Stir with magnetic stirrer for 15 minutes or longer if precipitate still forming (if cloudy after 15 mina heat mixture on a asteam bath or in boiling water for 10 mins then cool to room temp) When precipitate is complete cool flask in ice-water bath for 10 mins MEANWHILE--- A)place 4 mL of 4 acetic acid in 95% ethanl in a test tube B)Repeat this procedure with 2mL of 4% acetic acid in 95 % ethanol (v/v)
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America’s Foreign Oil Dependency: What are the options to stop this crisis? For Professor Sharon Mitchener From August 11‚ 2006 BUS 531 Research Proposal Abstract The topic of this paper is America’s foreign oil dependency. The purpose of this paper is to suggest how might America completely destroy or at least greatly mitigate its dependency on crude oil to fuel Americans’ cars‚ especially foreign crude oil. Library literature‚ newspaper articles‚ encyclopedias‚ and the Internet
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in drugs‚ cleaning solutions‚ explosives‚ and intoxicating beverages. Also called ethanol‚ ethyl alcohol‚ grain alcohol. Intoxicating liquor containing alcohol. Any of a series of hydroxyl compounds‚ the simplest of which are derived from saturated hydrocarbons‚ have the general formula CnH2n+1OH‚ and include ethanol and methanol. There are some uses of alcohol. The "alcohol" in alcoholic drinks is simply ethanol. As an
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IGCSE COURSEWORK - CHEMISTRY Name:Alessia Rovegno Class: S3scA Teacher: Mr tinwin Date:1-3-13 Experiment number: Ch 3 Title: Which is the Best Fuel? Mark awarded: C1 Coursework checklist (Following instructions) | Needed for | Student | Teacher | Comments | Follows written‚ diagrammatic or oral instructions to perform a single practical operation –measures water vol | 2 | | | | Use familiar apparatus and materials adequately and safely – safety glasses | 4 | | | |
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biodiesel get thirty percent better fuel economy than gasoline-powered vehicles (Perritano). The many forms of biofuels make it easier to obtain and use. Biofuels are better for the environment because they reduce greenhouse gas emissions. For example‚ ethanol reduces greenhouse gas emissions up to sixty-five percent (Perritano). Biofuels are a source of energy from plants that can help fuel our vehicles and our lives. A biofuel is any fuel that is made from plant material. Many biofuels can replace diesel
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WTHESIS STATEMENT: “BIOCONVERSION OF WATER HYACINTH (EICHHORNIA CRASSIPES) TO ETHANOL.” 1. INTRODUCTION Water hyacinth (Eichhornia crassipes) is a free-floating or rooted in mud plant or weed which can totally cover fresh water lakes‚ harbors‚ and other essentially relatively occluded fresh water bodies. It is a fast growing permanent aquatic plant that are extensively scattered all throughout the world. This tropical plant can be the reason for the infestation over large areas of water resources
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of a suspect. The proposed research of this paper focused on insects being affected by different concentrations of ethanol during natural insect development and also focused on the detection of ethanol in insects using gas chromatography mass spectrometry (GCMS) to determine if insects were significantly affected by ethanol exposure. The research also focused on the exposure of ethanol to the insects and how this exposure affected PMI (postmortem interval) determination. Forensic entomology is a commonly
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