References: http://webs.mn.catholic.edu.au/physics/emery/measurement.htm#Measurement http://www.digipac.ca/chemical/sigfigs/experimental_errors.htm http://www.tsb.gc.ca/eng/rapports-reports/rail/2011/r11v0057/r11v0057.pdf
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Conductivity Lab | Did conduct | Did not conduct | Solid sodium chloride | | | Solid sucrose | | | Distilled water | | | Alcohol | | | Tap Water | | | Distilled water and sodium chloride | | | Distilled water and sucrose | | | Alcohol and sodium chloride | | | Alcohol and sucrose | | | Questions: 2). Did any of the liquids conduct an electric current? If so‚ which one(s)‚ and please explain why or why not thoroughly? The tap water contains ions
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Rearrange Equation 2 ( [pic] .………..……... ( Equation 3 ) where natural frequency of the system‚ [pic] …..…….…..……... ( Equation 4 ) From Simple Theory of Torsion‚ [pic] where T = Applied torque J = Polar second moment of area [pic] = Shear stress R = Radius of shaft G = Shear modulus [pic] = Angle of twist L = Length of shaft As torsional stiffness
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Melissa Kenney Dr. Braun/Lab K Lewis Symbols & Structures Purpose The purpose of this lab experiment is to practice writing Lewis symbols for elements and monatomic ions while writing Lewis structure for molecules and polyatomic ions. I will also be writing chemical equations using Lewis structures for
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When Chemicals React! Mr. Bell’s honors level chemistry class conducted an experiment during their lab demonstrations‚ this consisted of elements such as phosphorus and calcium chloride in their experiment. This along with another hydrogen based sunstance produced‚ what looked like a pinkish-looking substance inside of their flasks that were at their lab stations. Sophmore Kelly Caudel said‚ “ I actualley enjoy doing the experiments in this class‚ because it gives us a chance to get away from
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Caroline Guidry Dr. Beverly A. Clement Organic Chemistry 2423‚ Section 304 25 October 2017 Lab 6: Natural Products I The main goal of this experiment was to employ isolation techniques to derive chemicals from two different natural sources and study their properties (Clement 91). The two natural sources used in this experiment were an orange (the peel contains limonene‚ which is a terpene) and a dichloromethane solution of clove oil (which contains eugenol‚ an acetogenin). To isolate the eugenol
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A. Goal and Purpose: Session 1: In this lab‚ we will achieve a simple Friedel-Crafts alkylation of anthracene. The choice of anthracene as an aromatic substrate stems from two considerations. First‚ there is a question of regioselectivity. Second‚ anthracene and its derivatives are highly visible under UV light. Session 2: In this lab‚ we will complete a partial conversion of 9-acetylanthracene using m-chloroperoxybenzoic acid (mCPBA). We will also determine by NMR‚ the regiochemistry of the
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Abstract: This report presents the reason why the ocean does not freeze in the winter. Since the ocean consists of salt water‚ an experiment was done to test the effect of freezing on salt water compared to pure water. The experiment was conducted three times in order to obtain accurate results and eliminate errors. In addition to the salt and pure water experiment‚ a variation of this experiment was created to test other options. In the variation experiment the effect of freezing on sugar water
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: September 2‚ 2013 Course/Yr. : BS Chemistry III Sched : MF 7-10‚ Group#2 Experiment No. 1 Synthesis and Reactivity of Tert-Butyl Chloride I. Objectives : 1. To produce tert-butyl chloride from tert-butyl alcohol 2. To understand the SN1 and SN2 mechanism involved in the reaction 3. To determine the yield of percentage of t-butyl chloride II. Introduction An alkyl halide is a derivative of alkanes. Alkanes are hydrocarbons with a functional group C-C. The hydrogen atom is then
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Original run‚ 10 mL of 85/15 acetone solution‚ 200 μL of 2-chloro‚ 2-methylpropane. 2. Same as original‚ but with 400 μL of t-butyl chloride. 3. Same as original but with 800 μL of t-butyl chloride. 4. Same as original but with 90/10 water acetone solution. 5. Same as original but with 80/20 water acetone solution. 6. Same as original‚ but with the water bath at
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