The theoretical yield of alum from the mass of aluminium scraps used in the experiment is calculated. The percentage yield of alum synthesised by mass is determined. The purity of alum recovered by melting point measurement is determined.
Molecular Modeling in Organic Chemistry In this laboratory activity, you will be examining molecular models of various organic compounds.
You will pay particular attention to the existence of isomers. Isomers are prevalent in organic compounds due primarily to carbon's ability to make 4 bonds.
In the first part of this lab, you may visit one or more of the following websites: It will take several seconds to load the Jmol applet the first time, or up to a minute or more if your computer or internet connection is slow.
Subsequent models will load much faster. Java is ordinarily enabled on web browsers. The free download and instructions may be found at http: You will be required to turn in answers to the following questions.
On the first page, type your name and that of your lab partner. Individual or group reports are allowed. The questions should be typed out available here.
Build molecular models and draw molecular structures condensed structures or line structures are just fine for each isomer that is possible for each of the molecular formulas given below. Distinguish between any cis- and trans- isomers that you find.
Five alkanes that have the formula C6H Six alkenes that have the formula C5H Six cycloalkanes that have the formula C5H Three alkynes that have the formula C5H8. Four alcohols that have the formula C4H10O.
Three ethers that have the formula C4H10O. Use common names for the ethers. After you complete constructing and naming the compounds above, complete the questions below.
You may use condensed structural formulas, if you prefer. Build molecular models and draw molecular structures for a primary amine, a secondary amine, and a tertiary amine that each have the formula C3H9N. Select one of the alkenes from 2.
Show its reaction with bromine. Draw the structural formula and name the product s of the reaction. Select the simplest alcohol from 5 that could be oxidized to an aldehyde.
Draw the structural formula and give the IUPAC name of the aldehyde that would be formed when the alcohol is oxidized. Select the simplest alcohol from 5 that could be oxidized to a ketone. Draw the structural formula and give the IUPAC name of the ketone that would be formed when the alcohol is oxidized.
Which alcohol in 5 could not be oxidized? Which of the products of the reactions in 9 and 10 may be oxidized to an organic acid? Using the organic acid from 12 and the alcohol used in 9, draw the structural formula and give the IUPAC name of the ester that would be formed. Finally, draw the structural formula condensed structures or line structures are just fine for each of the compounds whose names appear below.General Chemistry I Laboratory Manual Winter term Lab begins the first week of classes Required Text for CHEM (All sections) You must bring this lab manual, plus safety glasses, to the first lab period.
Safety glasses are required, and they are sold at the bookstore. CHM Lab 10 Report Essay possible the OH group on the 4-methylcyclohexene must first be converted into H2O by means of an acid-base reaction using a strong acid catalyst such as phosphoric acid and sulfuric acid.
CHM A Syllabus Fall – am TTh PS H Instructor: James P. Birk Office: Physical Sciences H Line Number Section Recitation Lab The report will be graded on discussion of relevant chemistry, thoroughness, grammar, and style. The Hayden-McNeil Difference.
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Organic Chemistry Experiment #3 Recrystallization 3 Part I. Obtain mass of dried solid from Experiment #2. information will be made available on the course webpage for your lab report. An ethanol/water mix might be just the thing you need.
Ethanol and water dissolves like an alcohol at. It is important that students work on their lab report as experiments progress during the semester. Grading scheme is given on p. 6 of lab manual. Directions on writing a lab DATE WEEK CHEM LAB EXPERIMENTS Sep 5 W1 Check-in, Safety Video, Desks .