Coal hypothesis = Coal will contaminate the water source making it more acidic. 2. Based on the results of your experiment, would you reject or accept each hypothesis that you produced in question 1? Explain how you determined this. a. Pyrite hypothesis accept/reject = Accept, because the pH level did rise within the 48 hour period during the experiment.
pyridinium hydrobromide perbromide type of stationary phase column length column temperature rate ﬂow of the carrier gas List the 4 general factors that affect the separation obtained on a gas chromatograph What speciﬁc technique is used to collect/isolate your puriﬁed unknown compound at the end of the recrystallization experiment? suction ﬁltration 14 of 22 4/16/12 9:15 PM StudyBlue Flashcard Printing of Lab Final 2211L UGA
(2 marks) 8 Show 2 possible products that could form when Compound H undergoes a halogenation reaction with iodine. Draw the structural isomers and name them. 2 marks 9a Is this halogenation reaction is an addition or substitution reaction? ½ mark 9b Under what conditions would this reaction occur? ½ mark 10 Outline the reaction pathway to produce propanoic acid from propane.
Ideal Gas Behavior Instructor: Nieves Montano Chem 151, Section 002G Date Work Performed: February 12, 2014 Date Report Submitted: February 20, 2014 Abstract: This paper reports a lab experiment done on the ideal gas law to determine differences in gas based upon their “R” constant difference to 0.082057. A total of seven gases were tested, which included, Ethanol, Hexane, Cyclohexane, Pentane, Ethyl Acetate, Butane and Acetone. These gases were each heated and then condensed to liquid gas to find specific values and determined Ethanol as the gas closest to ideal behavior in this experiment. Introduction: The Ideal Gas Law demonstrates the relationship of the properties of gases. This relationship is specific to the gases that are considered “ideal”.
0.05mol/6M=8.3*10-3 L=8.3mL stock solution c. 100mL-8.3mL=91.7mLwater Add 91.7 water to 6M stock solution to prepare 0.5M acetic acid. Exercise 8: a. 42.35 - 0.55 = 41.8 mL b. The moles of EDTA4- : 0.0189M*(41.8*10-3)L=7.9*10-4mol c. Zn2+(aq)+EDTA4-(aq)—Zn(EDTA)2-(aq) The ratio Zn2+ and EDTA4- is 1:1 The moles of Zn2+= the moles of EDTA4-=7.9*10-4mol d. 7.9*10-4mol*65.39g/mol=0.0517g Zn e.
Oil Factor: Behind the War on Terror Academic Review of a Documentary Step 1 Give details of the documentary 1. Title of the documentary, produced by whom and when was it produced? The title of the documentary is “Oil Factor: Behind the War on Terror”, it was produced by Gerard Ungerman and Audray Brohy on July 15, 2005. Step 2 Explain the purpose of the documentary 2. What is the purpose of the documentary?
The Superfund program was established by the Comprehensive Environmental Response, Compensation and Liability Act of 1980 to address abandoned hazardous waste sites. The law was enacted, by Congress, following the discovery of several toxic waste dumps in the 1970’s. The law enables the Environmental Protection Agency (EPA) to clean up these sites or force the responsible parties to perform the cleanups or reimburse the government for EPA-led cleanups. The Superfund process begins when a site containing potentially hazardous substances is discovered by or reported to the EPA. Sites can be reported by various means.
Owners of Centralia Mine No. 5, Centralia Coal Company and Bell & Zoeller, neglected to employ a local body to routinely inspect and regulate this mine (Stillman 2010 p. 31). This resulted in the Illinois Department of Mines and Minerals being the sole party responsible for the oversight of this mine. Between 1942 and 1944 Illinois state inspector, Driscoll Scalan inspected the mines every three months (Stillman, 2010 p. 32). After each inspection, Scalan submitted in-depth reports to the Illinois Department of Mines and Minerals filled with hazardous violations that would ultimately be the cause of the fatal explosion.