Documents about Ethyl Alcohol
5questions-gp6
Virginia Military Institute, CH 132
Excerpt: ... Case study- Cpt 9 Group 7: Ethanol abuse 1. What is another term for ethyl alcohol ? Ethanol, grain alcohol 2. What effect does ethyl alcohol have on the body? Liver- formation of fatty livber, eventually leads to chirrosis Kidneys- increase renal function; electrolyte loss, leading to dehydration Brain- slows neuro-responses Cardiovascular- elevates blood pressure, risk of stroke 3. What does alcohol do to the nervous system? Slows response times; system often adapts (neuroadaption) 4. What are neuro-transmitters and what do they do? Chemical messengers between nerve cells 5. List at least three behavioral effects alcohol has on the body. Slurred speech, violent behavior, hyperactivity, stumbling, loss of impulse control ...
|
|
L6Q4
Michigan State University, CHEMUNIT 1
Excerpt: ... Q6.4 Using the density tables presented in this lecture, carry out the dimensional analyses necessary to determine each of the following. 1. The mass (in g) of 10.0 mL of ethyl alcohol . 2. The volume (in mL) of 10.0 g of ethyl alcohol . 3. The mass (in kg) of a solid rectangular brick of gold with dimensions of 25.0 cm x 20.0 cm x 50.0 mm. 4. The weight (in pounds) of 1.00 gallon of mercury. (1.00 gallon = 3.78 L, 1.00 pound = 454 g) 5. The weight (in pounds) of $100.00 of DMSO given that it sells for $62.50 per gallon. (1.00 gallon = 3.78 L, 1.00 pound = 454 g) ...
|
|
antsetr20002000n113553
Allan Hancock College, ANTSETR 20002000
Excerpt: ... e) of the definition of fruit or vegetable wine in section 31-4 of the Act; and (b) paragraph 31-8 (1) (c) of the Act - this regulation makes arrangements relating to fruit or vegetable wine. (2) Ethyl alcohol , from grape spirit or neutral spirit, may be added to fruit or vegetable wine. (3) If ethyl alcohol , from grape spirit or neutral spirit, is added to fruit or vegetable wine, the resulting beverage must contain at least 15% by volume of ethyl alcohol and not more than 22% by volume of ethyl alcohol . NoteThe process of adding ethyl alcohol in this way produces a beverage commonly known as fortified fruit wine or fortified vegetable wine. A NEW TAX SYSTEM (WINE EQUALISATION TAX) REGULATIONS 2000 2000 NO. 113 - REG 31.6.01 Mead (1) For the purposes of: (a) paragraphs (b), (c) and (d) of the definition of mead in section 31-6 of the Act; and (b) paragraph 31-8 (1) (e) of the Act - this regulation makes arrangements relating to me ...
|
|
Lecture 3
Penn State, CHEM 101
Excerpt: ... Chapter 3 Matter States of Matter States of Matter (cont.) Universe Classified Matter: the part of the universe that has mass and volume Chemistry is the study of matter The properties of different types of matter The way matter changes and behaves when influenced by other matter and/or energy Properties of Matter Physical Properties: the characteristics of matter that can be changed without changing its composition Characteristics that are directly observable Chemical Properties: the characteristics that determine how the composition of matter changes as a result of contact with other matter or the influence of energy Characteristics that describe the behavior of matter Chemical Properties One commonly cited chemical property is flammability, the ease with which a substance burns in a flame. Burning is a chemical reaction. Classify Each of the following as a Physical or Chemical Property Ethyl alcohol boiling at 78C. Hardness of a diamond. Sugar fermenting to form ethyl alcohol . Changes in Matter ...
|
|
Lecture5
Virginia Tech, EDHL 1514
Excerpt: ... NOTE: This material will be on Test # 2. Alcohol BEVERAGE ALCOHOL IS ETHYL ALCOHOL PERMEABLE MOLECULE QUICKLY ABSORBED INTO THE BLOOD How Alcohol is Produced Fermentation Distillation PHYSIOLOGY OF ALCOHOL NERVOUS SYSTEM CEREBRUM CEREBELLUM MEDULLA PHYSIOLOGY OF ALCOHOL ENDOCRINE SYSTEM ADH INHIBITOR PHYSIOLOGY OF ALCOHOL CARDIOVASCULAR SYSTEM VASODILATOR PHYSIOLOGY OF ALCOHOL DIGESTIVE SYSTEM GASTRIC IRRITANT LIVER OXIDATION RATE OF OXIDATION 1/2 OZ/HOUR AMOUNT OF ALCOHOL IN STANDARD SIZE DRINK Oxidation Alcohol Acetaldehyde Acetic Acid Carbon Dioxide + Water BLOOD ALCOHOL CONCENTRATION DOSE/RESPONSE The more alcohol consumed, the more alcohol in the blood, the higher the BAC BAC Examples .05 = Lifting of inhibitions, relaxed .08 = Awareness, judgment impaired .20 = Significant impairment of awareness, judgment, and motor functions .40 = LD/50 .60 = LD/100 BAC Females: .03/drink/hr Ma ...
|
|
Quiz3key
Puget Sound, C 250
Excerpt: ... Organic Chemistry Chemistry 250 Quiz #3 1) Show both products and determine their stereochemical relationship. (5 points) O Me H H Me NaOCH3 HO Me H H Me Me H MeO OH H Me + OMe (after workup). They are identical. Note that since the starting material is chiral making a pair of enantiomers, i.e. a racemic mix, would be going from a chiral system to an achiral system which is impossible w/o a chiral influence or destruction of the chiral center. 2) Starting from ethyl alcohol and t-butyl alcohol, (1,1-dimethyl-1-ethanol), and any reagents you need, synthesize the following ether, (ethyl t-butyl ether). (5 points) PBr3 OH Br O NaH OH O ...
|
|
_Experiment14
University of the Philippines Diliman, CHEM 16
Excerpt: ... Date Performed: Experiment 14 Solubility and Heats of Solution I. Objectives -to explore the solubility of several solutes in different solvents. II. Diagrams/Figures for Special Set-ups: None for this expt. III Outline/Schematic Diagram of Procedure.: 1. Solubility (Effect of Solute and Solvent) a. Pipet 0.50 mL each of dH2O, ethyl alcohol and toluene in 3 separate test tubes. To each soln, add a pinch of NaCl. Shake test tube & let it stand. Observe & record results as soluble or insoluble. b. Pipet 0.50 mL each of dH2O, ethyl alcohol , and toluene in 3 separate test tubes. TO each soln, add a drop of glycerol. Shake the test tube and let it stand. Observe and record results as miscible or immiscible. c. Pipet 0.50 mL dH2O into 2 separate test tubes. To each test tube, add a small iodine crystal then shake. To 1 soln, add a drop of KI and shake. Compare the colors of the solns and record your observation. 2. Temperature & Solubility Place 1 mL dH2O into a test tube. Add NH4Cl into each test tube until no mor ...
|
|
Homework Set 1
Utah State, PHYSICS 2110
Excerpt: ... lithium to three significant figures. Q3. The density of solid gold is 19,300 kg/m3. Look up the atomic mass number of naturally occurring gold. Calculate the average atomic spacing in solid gold to three significant figures. Q4. The density of liquid ethyl alcohol is 806 kg/m3. An ethyl alcohol molecule contains 2 carbons, 6 hydrogens, and 1 oxygen. What is the average mass number per atom of ethyl alcohol ? Calculate the average atomic spacing in liquid ethyl alcohol to three significant figures. Q5. The three previous problems represent atomic spacings in a broad range of condensed matter. If you were asked to make a generalization about the atomic spacing in solids and liquids from these results what would you say? Q6. Solids and liquids are very difficult to compress. The atoms are packed in them about as tightly as is possible. Atomic spacings for solids and liquids, therefore, are approximately the diameters of the respective atoms. Gases, on the other hand, can be compressed quite easily. The density ...
|
|
attachment-0002
Texas A&M University, Corpus Christi, SCI 20080919
Excerpt: ... A B C D E F G H I start with this reagent 95% ethyl alcohol mixture A mixture B 1M hydrochloric acid (HCl) 0.1M copper(II) sulfate (CuSO4) 0.1M CuSO4 mixture F 1M HCl barium hydroxide octahydrate (Ba(OH2) 8H2O) add this reagent cobalt(II) chloride hexahydrate (CoCl2 6H2O) distilled water 0.5M sodium hydrogen carbonate (NaHCO3) magnesium (Mg) steel wool 0.5M NaHCO3 1M ammonia (NH3) NaHCO3 ammonium thiocyanate (NH4SCN) REAC0604: Observing Signs of Chemical Reaction 55 A. Adding CoCl2 6H2O to 95% Ethyl Alcohol CAUTION Cobalt(II) chloride hexahydrate is toxic and irritating. Ethyl alcohol is flammable and toxic. NOTE: The success of this reaction depends on your beginning with a dry test tube. 1. Place 6 clean, dry, 13 100-mm test tubes in a support rack. Label the tubes 16. 2. From your laboratory instructor, obtain 2 mL of 95% ethyl alcohol and the amount of CoCl2 6H2O crystals needed to fill the end of a microspatula. Record descriptions of your reagents on your Data and Observations sheet. 3. ...
|
|
Geometry of Chemical Species
SEMO, CH 081
Excerpt: ... ether (C2H6O), and the second molecule is ethyl alcohol (C2H6O). Compare the two models. The formulas are identical, right? But ethyl alcohol is a compound that causes intoxication when ingested in sufficient quantities (beer, wine, etc.), and dimethyl ether is a close cousin of the ether that was the first general anesthetic used in surgery. Ethyl alcohol is watersoluble and boils at 78 C, while dimethyl ether is water-insoluble and boils at -24 C. 2. Construct a model of the following compound: H C Cl C H Cl Use springs to represent the double bond between the two carbon atoms. Now, try to construct two other different models of C2H2Cl2 in which the two carbon atoms are still linked by a double bond. Note: since you only have four Cl atoms, you will need to pretend that the two orange Br atoms are also Cl atoms for this exercise. Compare the three models. 3. Take apart these three models, and build a model of CHBrClI. Now try to build a second model of CHBrClI that is different from the first. Set t ...
|
|
materialandmethods
Lehigh, BIOS 043
Excerpt: ... ate the slides and allow them to dry for 5 minutes. After the slides dry, place a few drops of ethyl alcohol on the cells o both slides. Wait another 3 minutes, then put a few more drops of ethyl alcohol on the cells. Allow the cells to dry again and then place 1-2 drop of methylene blue on the two samples on one slide and 1-2 drops of Eosin on the two samples on the other slide. Wait about 5 minutes and then rinse the slides with water. Lastly, place a cover slide over the samples and examine them under microscope. Packaging of DNA in the Nucleus: Isolation of Nuclei First, obtain a 5 gram piece of thymus and cut it into small pieces. Place the pieces into a mortar and grind the tissue until it obtains a snot-like consistency. Place the tissue onto a cheese cloth and hold the cloth over a centrifuge tube. Pour 50 mL of nuclear buffer through the cloth into the tube. Centrifuge the tube at 2000 x gravity for 5 minutes. After centrifuging the tube, discard the buffer. Add a fresh 50 mL of nuclear buffer to ...
|
|
123E2KeyGW06
Cal Poly Pomona, CHEM 123
Excerpt: ... of glucose (C6H12O6) is dissolved in 285 grams of ethyl alcohol (C2H6O). The boiling point of the solution is measured as 79.1oC. Kb = 1.22 oC/m for ethyl alcohol . Calculate the boiling point of pure ethyl alcohol . Tb = Kb x m molglucose = 26.0 / 180 = 0.1444 mol m = 0.1444 / 0.285 = 0.5068 Tb = (.122 oC/m)(0.5068 m) = 0.618 Talcohol = 79.1 0.618 = 78.5 oC ...
|
|
Lect 27 March 29 outline
Redlands, PHYS 221
Excerpt: ... in the Plexiglas? 26.3Total Internal Reflection Example3: For what angle of incidence would light cease to transmit from glass into air, i.e., what is this interface's critical angle? HW 24 3. The frequency of a light wave is the same when the light travels in ethyl alcohol as it is when it travels in carbon disulfide. Find the ratio of the wavelength of the light in ethyl alcohol to that in carbon disulfide. 10. A ray of light traveling in material A strikes the interface between materials A and B at an angle of incidence of 72. The angle of refraction is 56. Find the ration nA/nB of the refractive indices of the two materials. 24. What is the critical angle for light emerging from carbon disulfice into air? ...
|
|
Energetics III - Cell Respiration Summmer 2002
El Paso CC, SPOT 101
Excerpt: ... Kruse Biology 101 Lecture Outline Energetics III Cell Respiration Reading: Chapter 8: How Cells Release Stored Energy I. Cellular respiration - universal process A. Aerobic and anaerobic respiration general comments 1. Aerobic- presence of O2 2. Anaerobic - absence of O2 a. Fermentation - typically either (1) Lactate (lactic acid) or (2) Ethyl alcohol and CO2 b. Anaerobic electron transport - bacteria ocean vents or hot springs B. Glycolysis starting point 1. Breakdown of glucose 2. Universal process 3. Does not require O2 C. Overview of aerobic respiration 1. Glycolysis - breakdown of glucose to pyruvate (pyruvic acid) 2. Intermediate steps - conversion of pyruvate to acetate 3. Krebs Cycle (Citric Acid Cycle) 4. Electron Transport Chain and Chemiosmotic gradient II. Aerobic respiration summary - very simplified, but worthwhile knowing A. Glycolysis 1. Glucose - 6 carbon molecule 2. 2 molecules of pyruvate (pyruvic acid) 3. Activation energy 2 ATP 4. Production of 4 ATP 5. Net gain of 2 ATP 6. 2 NAD+ ...
|
|
Chapter 09
Saginaw Valley, CHEM 111
Excerpt: ... lent bond, we can designate a Lewis structure for the molecule, by accounting for the total number of electrons that each atom contributes Chem 111 lecture notes By Alan Zombeck page2 ffa26e2941ad9c48fc0c7fd394c7f44de467c4c3.doc Example hydrogen Covalent bonding and the octet rule When atoms form covalent bonds, they tend to share sufficient electrons so as to achieve an outer shell having eight electrons Examples HCl CH4 NH3 H2O Multiple bonds Sometimes more than one pair of electrons is shared between two atoms, when this happens a multiple bond is formed For example N2 Some important compounds of carbon (study from book) Methane Ethane Propane Ethylene Chem 111 lecture notes By Alan Zombeck page3 ffa26e2941ad9c48fc0c7fd394c7f44de467c4c3.doc Ethyl alcohol Electronegativity and the polarity of bonds In covalent bonds, we have a sharing of electrons. But what happens if one atom is "stronger" than the other, and wins the tug of war for the pair of electrons result is the creation o ...
|
|
Lect-10_202
SUNY Stony Brook, BIO 202 Bio 202
Excerpt: ... anaerobic conditions, the end product of glycolysis is ethyl alcohol (ethanol). In the synthesis of ethanol, two additional enzymatic steps are required. Note: In the synthesis of ethanol, NAD+ is regenerated from NADH. This alcohol dehydrogenase (DH) reaction allows glycolysis to proceed. s s Fermentation in Yeast Fermentation in Yeast s Most of the ethanol consumed is produced by this microorganism. One of the most well studied biochemical pathways is the conversion of glucose to ethanol. s Fermentation s In some bacteria and in exercising muscle two molecules of lactic acid are produced as an end product of glycolysis. This is also an anaerobic process. In muscle, oxygen becomes scarce during heavy exercise. Under these conditions the enzyme lactic acid DH (LDH) regenerates NAD+ from NADH so glycolysis can proceed. s s Fermentation Conversion of pyruvate to acetyl CoA, the junction between glycolysis and the Krebs cycle Pyruvate as a key juncture in catabolism ...
|
|
GelFiltrationTechniques_000
Winona, BIO 241
Excerpt: ... the solvent. You will use this fluid in your experiment. Step 2: Preparing Your Columns for Filtration 1. Obtain a gel filtration column for each extract (1 for the unknown, 1 for coleus, 1 for spinach and 1 for beet leaves). Mount the column on a ring stand with a burette clamp. The gel is soaking in alcohol. 2. Remove the top and bottom spout. Allow the alcohol to run through the outlet spout into a beaker. 3. When the alcohol level is equal with the level of the gel, cap the bottom spouts. Make certain that the column is supported in a vertical position. 4. Using a clean medicine dropper (or Pasteur pipet), drop 10 drops of plant extract into the top of a gel column (1 plant pigment per column). Uncap the bottom of the column. 5. The pigment in alcohol will begin to flow into the gel. When the alcohol flow stops (top of gel), start adding drops of ethyl alcohol (the eluant) 5-10 seconds apart to the space on top of the gel column. 6. Observe the column as pigment(s) first appear(s). Note how many drops of ...
|
|
122ch11b_003
Ohio State, CHEM 122
Excerpt: ... 10 11 12 13 11.36) 14 15 11.40) Lower VP => higher bp 16 11.44) The question refers to Fig 11.22 but it should be Fig 11.24 (could also use 11.25, lnP vs. 1/T since it is for ethyl alcohol ). 17 11.48) a) b) Also, see Fig 11.27(a). The triple point occurs at 4.58 torr. 18 19 20 ...
|
|
14-Organic Chemistry_S09
Idaho State, ENVE 408
Excerpt: ... f radical CnH2n+2 CnH2n CnH2n-2 = C1 Methyl Methane CH4 C2 Ethyl Ethane C2H6 Ethylene CH2=CH2 Acetylene HC=CH Propylene C2H4=C2H4 Propyne C3 Propyl Propane C3H8 C4 Butyl Butane Butene Butyne C5 Amyl Pentane Pentene Pentyne C6 Hexyl Hexane Hexene Hexyne C7 Heptyl Heptane Heptene Heptyne C8 Octyl Octane Octene Octyne C9 Nonyl Nonane Nonene Nonyne C10 Decyl Decane Decene Decyne O R-C-H R-OH Name of Alcohols Aldehydes radical IUPAC Common IUPAC Common = C1 Methyl Methanol M ethyl alcohol Methanal Formaldehyde C2 Ethyl Ethanol Ethyl alcohol Ethanal Acetaldehyde C3 Propyl 1-Propanol n-propyl alcohol Propanal Propionaldehyde C4 Butyl 1-Butanol n-butyl alcohol Butanal Butyraldehyde C5 Amyl 1-Pentanol n-pentyl alcohol Pentanal Valeraldehyde C6 Hexyl 1-Hexanol n-hexyl alcohol Hexanal Caproaldehyde C7 Heptyl 1-Heptanol n-heptyl alcohol Heptanal Heptaldehyde C8 Octyl 1-Octanol n ...
|
|
DeviceSheetKillingAgent
Texas A&M, ENTO 489
Excerpt: ... ificant) ethyl alcohol (=ethanol, =drinking alcohol) uses (killing agent [in small hand-held killing jars and vials, less commonly in stationary traps], short- to long-term preservative [at 70%-80%, the primary permanent preservative used in most institutional insect collections; at 100%, a common field preservative for specimens collected for molecular studies]) vertebrate toxicity (relatively low) evaporation rate (high) preservative use (short- to long-term [to permanent storage]) decay prevention (yes) rinsing [to ethanol] (easy) flammable (yes) availability (local commercial; specialty commercial; regulated) cost (moderate to high) advantages (a commonly-used killing agent in many kinds of small, hand-held, wet killing jars/vials that are tightly sealed after the addition of specimens; excellent preservative properties; generally ready local availability; change fluid at least once to avoid degradation of preservative properties due to dilution from specimen body fluids) disadvantages (strongly fades s ...
|
|
Student notes lecture 18 F08
Purdue, CHM 115
Excerpt: ... 6 Selected Vapor Pressures VP at 25oC ether, bromine, ethyl alcohol , water, ethylene glycol, 0.7 atm (550 mm Hg) 0.3 atm (228 mm Hg) 0.08 atm (60 mm Hg) 0.03 atm (24 mm Hg) ~ 0 atm 7 Vapor Pressure Vapor pressures are temperature dependent. 1 torr = 1 mm Hg 760 torr = 1 atm 8 9 Vapor Pressure Equilibrium pressure of the substance vapor phase above its liquid VP decreases with number of particles of solute 10 Vapor Pressure VP decreases with number of particles of solute Psolvent X 0 solvent solvent P remember, mole fraction is: X solvent # mol solvent # mol solvent + # mol solute 11 Vapor Pressure VP decreases with number of particles of solute Psolvent X P X 0 solvent solvent P X solvent 1 X solute 0 solute solvent P Raoult's Law (for dilute solutions) 12 13 Vapor Pressure VP decreases with number of particles of solute 0 P Psolvent Psolution P > 0 means decrease in VP 14 Boiling Point Boilin ...
|
|
BSC_2010_Review_study_guide
Fayetteville State University, BSC 2010
Excerpt: ... se in absence of O2 to 2 molecules of pyruvic acid and assembling 2 molecules of ATP. Pyruvic acid is converted to ethyl alcohol or lactic acid to re-create a supply of NAD+. 12. Photosynthesis : use of energy in sunlight to assemble glucose from CO2 and water. O2 is made by donating electrons from H2O to the photosystems 13. Semiconservative replication of DNA: replication of DNA in which each daughter molecule consists of one original parental strand and one newly synthesized strand 14. Protein synthesis: Transcription-synthesis of mRNA as a base paired copy of the nucleotides sequence in a genes DNA. Translation movement of mRNA through ribosomes and use of tRNA to assemble a specific sequence of amino acids into a protein. 16.Viral infective cycles: lytic-: virus rapidly replicates and breaks open ( lyses ) the infected cell. Lysogenic - viral DNA incorporates into host cell DNA . Retro- viral RNA converts to DNA and incorporates into host cell DNA. 17. Function of the LAC operon: Lactose binds t ...
|
|
exp2w08
UCSB, CHEM 6a
Excerpt: ... ser as a receiver. Begin heating with the hot plate (raise the temperature very slowly, watch the line). For water, the maximum setting may be needed initially. Watch the "pot" to see that it does not boil so vigorously that liquid runs over the top. Distillation should be drop-wise. Record the temperature on the thermometer for every 0.5 mL of distillate. In your notebook, make a graph of temperature versus distillation volume. Ethyl alcohol boils at 78.3 C, but the ethyl alcohol -water azeotrope boils at 78.15 C. Continue the distillation until 6 mL has distilled or until the temperature reaches 100 C, the boiling point of pure water. Stop the distillation by turning off the hot-plate and raising the clamp holding the apparatus. Notes for the TAs: Preheat the aluminum block to avoid long distillations. Also, insulating the fractionating column as well as performing the distillation on the bench top greatly speeds up the lab. Three is the magic number for the approximate number of boiling chips needed (tru ...
|