Loading...

Messages

Proposals

Stuck in your homework and missing deadline? Get urgent help in $10/Page with 24 hours deadline

Get Urgent Writing Help In Your Essays, Assignments, Homeworks, Dissertation, Thesis Or Coursework & Achieve A+ Grades.

Privacy Guaranteed - 100% Plagiarism Free Writing - Free Turnitin Report - Professional And Experienced Writers - 24/7 Online Support

Acetophenone ir spectrum labeled

22/04/2021 Client: muhammad11 Deadline: 2 Day

CHEM 2243 Introduction to Infrared Spectroscopy and Qualitative Tests Purpose: In this virtual lab experiment, you will explore the use of infrared spectroscopy and various qualitative tests to distinguish between four organic compounds: acetophenone, benzaldehyde, benzoic acid, and benzyl alcohol. Infrared spectroscopy is useful for distinguishing classes of organic compounds (ie. functional groups). We can identify functional groups using infrared (IR) spectroscopy. IR radiation is in the same range of frequencies (4000-600 cm-1) as the stretching and bending vibrations of bonds in organic molecules. When the frequency of the radiation exactly matches the frequency of the bond, the molecule absorbs energy, resulting in an absorption peak in the IR spectrum. Most Page 1 of 8 functional groups show absorption bands in the region of 4000-1400 cm-1. See the handouts: Characteristic Infrared Absorption Peaks and IR Tutorial UCLA for help identifying the peaks. Prior to modern spectroscopy and spectrometry techniques, one way that chemists used to identify classes of organic compounds was through qualitative tests. These simple chemical tests can be used to indicate the presence (or absence) of certain functional groups. You will use the Beyond Labz virtual platform to record the IR spectra, and to perform the following qualitative tests on the four organic molecules that you are investigating in this virtual lab experiment. (acetophenone, benzaldehyde, benzoic acid, and benzyl alcohol). Functional group qualitative tests: Permanganate Test: A purple permanganate solution is placed in a test tube and unknowns are added directly to the permanganate solution. For solid unknowns, the solid is first dissolved in acetone. If the purple color of the permanganate persists, the test is negative. If the solution changes from purple to brown (MnO2), the molecule is oxidizable and the test is positive and the unknown contains one or more of the following: alkene, primary or secondary alcohol, or an aldehyde. Jones Test: The unknown is mixed with acetone to produce a saturated solution, and then added to the Jones reagent (chromic acid). The persistence of the bright orange color indicates a negative test. A color change to blue or green is a positive test. A rapid change to a light blue color indicates a primary or secondary alcohol. If the color change takes longer than one or two seconds, the unknown contains an aldehyde. Tollens Test: Concentrated aqueous NH3, 5% aqueous AgNO3, and 10% aqueous NaOH are added to a test tube followed by a minimal amount of the unknown. The formation of a silver mirror on the test tube wall is a positive test for aldehydes and reducing sugars. 2,4-Dinitrophenylhydrazine Test (DNPH): Liquid unknown or a solution containing the solid unknown and ethanol is added to the orange dinitrophenylhydrazine solution. The formation of a precipitate ranging in color from red to yellow is a positive test for aldehydes and ketones. Allylic and benzylic alcohols may also give a positive test. Absence of a precipitate is a negative test. Iodoform Test: The unknown and a small amount of 10% aqueous NaOH are heated to 60˚C. KI/I2 is then added to the solution followed by the addition of NaOH until the solution is again colorless. The appearance of a light-yellow precipitate is a positive test for methyl ketones. Alcohols which may be oxidized to produce methyl ketones or acetaldehyde may also give positive tests. If the solution remains clear, the test is negative. Page 2 of 8 Virtual Lab Instructions (video instructions also available). Help is available by clicking on the bell on the stockroom counter.

Homework is Completed By:

Writer Writer Name Amount Client Comments & Rating
Instant Homework Helper

ONLINE

Instant Homework Helper

$36

She helped me in last minute in a very reasonable price. She is a lifesaver, I got A+ grade in my homework, I will surely hire her again for my next assignments, Thumbs Up!

Order & Get This Solution Within 3 Hours in $25/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 3 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 6 Hours in $20/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 6 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

Order & Get This Solution Within 12 Hours in $15/Page

Custom Original Solution And Get A+ Grades

  • 100% Plagiarism Free
  • Proper APA/MLA/Harvard Referencing
  • Delivery in 12 Hours After Placing Order
  • Free Turnitin Report
  • Unlimited Revisions
  • Privacy Guaranteed

6 writers have sent their proposals to do this homework:

Finance Master
Professional Coursework Help
Quick N Quality
Math Guru
Quick Finance Master
Engineering Exam Guru
Writer Writer Name Offer Chat
Finance Master

ONLINE

Finance Master

I have read and understood all your initial requirements, and I am very professional in this task.

$15 Chat With Writer
Professional Coursework Help

ONLINE

Professional Coursework Help

You can award me any time as I am ready to start your project curiously. Waiting for your positive response. Thank you!

$27 Chat With Writer
Quick N Quality

ONLINE

Quick N Quality

I will cover all the points which you have mentioned in your project details.

$38 Chat With Writer
Math Guru

ONLINE

Math Guru

I have read and understood all your initial requirements, and I am very professional in this task.

$21 Chat With Writer
Quick Finance Master

ONLINE

Quick Finance Master

You can award me any time as I am ready to start your project curiously. Waiting for your positive response. Thank you!

$33 Chat With Writer
Engineering Exam Guru

ONLINE

Engineering Exam Guru

Hello, I an ranked top 10 freelancers in academic and contents writing. I can write and updated your personal statement with great quality and free of plagiarism

$21 Chat With Writer

Let our expert academic writers to help you in achieving a+ grades in your homework, assignment, quiz or exam.

Similar Homework Questions

Hess's law a level chemistry questions - Evidence based practice - Formula to find normality - Assignment 2 social control and criminal deviance bullying - 3rd person past tense lab report - Reply to this discussion - benjamin - Job centered leader behavior - Woolworths car insurance claims - Difference between limitation and delimitation - Help with homework - Diedline - Simple but tedious single math problem - 6 HOUR TURNAROUND. - Earthquakes and volcanoes worksheet answer key - Explanatory passages present both sides are objective and ___________________ - Arthur miller death of a salesman sparknotes - Experiment 1 neutralization of acids and bases data tables - Abiotic factors in the grand canyon - Genigraphics research poster template - De morgan's law statement - External conflict in macbeth - Pasarlo bien : discutir :: adorar : - Vce english as an additional language - Td silent fan uk - Nursing pediatrics case study - DISCUSSION REPLY - E commerce at yunnan lucky air case study - Electromagnetic induction numericals with solution - I need 2500 words in strategic marketing plan marketing guide - 1z0 071 exam dumps - Marketing - Metaphors in the scarlet ibis - Firms that lack competitive advantages will - How to calculate correlation coefficient on calculator casio - Explain why the Lean Organizational Structure is beneficial for businesses aiming to increase their value. - What do blobfish eat - School Counseling - The underground fat loss manual - Phyhsics questions - Above and beyond award - Social work research ppt - How to front end estimate - Ford motor company case study analysis - Strengths of biological approach - Purchasing officer job description - Air force gap year - A passageway connecting neighboring osteocytes in an osteon is a - Formulating quantitative and qualitative research questions - Marketing communications discovery creation and conversations ebook - Kn mm to joules - Thin lens equation problems - Security management models and practices - Week 4 nurs 340 b dis - Alberti bass in 3/4 - Business Research Methodology - Kelvin taiwan makeup artist blog - Strategic management frank rothaermel 4th edition pdf - DB 5 - Billed customers for fees earned for managing rental property - Topic 5 DQ 2 - Paper review - Jazzy air 2 specs - Mba academic and professional document guidelines - Module 6 Case Study: Perfection - Criminology theory selected classic readings - Which mission statement best represents the digby - Victoria carpets bourton twist - Key differences between domestic and international human resource management - Reverse Engineering, Vlnerabilties - Business Plan - Examples of ads with weasel words - Sound of music nuns chant - Justification report template - Advisory tv & radio labs sunnyside ny - Applying for special consideration griffith - Kilkenny county council jobs - Imbedment - Paper mill internship report - Naming blaming and claiming - Replies week 7 - Beamex mc2 manual pdf - Cbus address and abn - SCM - Compare and contrast thesis statement - Health and medicine division quality indicators - Download servicemaxx j1708 software free - Popped secret the mysterious origin of corn answer sheet - Sydney turner ryan strome - Global business today mcgraw hill - Colonial first state geared share fund - A group of college students believes that herbal tea - Four spheres of political action in nursing - Total cost of merchandise purchased - Proactive vs reactive activities - Classification of life worksheet answer key - How to write grammatically correct sentences - Legal relationship between patients and the provider - Distributed computing project ideas - Lewis h lapham net worth - The baldwin company will increase its automation - Chuck close self portrait analysis