Questions of the day: What is the functional group of Carboxylic Acids Anhydrides Esters Amides Amines Nitro ???

Slides:

Advertisements

Similar presentations

Reactions in Aqueous Solutions

Advertisements

Phenols (Ar-OH).

Daniel L. Reger Scott R. Goode David W. Ball Chapter 4 Chemical Reactions in Solution.

بسم الله الرحمن الرحيم.  To identify organic compounds from their odors and the colors of their reaction products.

ACID-BASE TITRATIONS Lesson 10. Acid-Base Titrations… PART I: what is a titration? how is it performed? what tools are needed? PART II: Perform Titration.

Today: Unknown 1 (review) aldehyde, ketone, alcohol, phenol

Chapter 10 Carboxylic Acids 1Chapter Introduction Carbonyl (-C=O) and hydroxyl (-OH) on the same carbon is carboxyl group. Carboxyl group is usually.

Today: Hand in MiniQuiz Nitro compounds and inert compounds IR; UV Next time, 11/18 (no class on 11/11): Mass spectrometry Bring your Unknown 3 spectra.

Chapter Seventeen Amines and Amides.

Questions of the Day: Which test allows you to distinguish between 1) an aldehyde and a ketone? 2) an aldehyde and a primary alcohol? 3) an alcohol and.

Midterm Key is in ERES file Class Average: 75.5 High: 100 Low: 27 Today: “Unknowns”: - Brief Review of Preliminary tests and Solubilities - Aldehydes and.

How to be, become, stay successful in this class (i.e. get a good grade!!) Attend every class (including lab lecture!) Preview/review and study lectures.

Volunteers needed To help doing chemistry activities (“Plant smells and molecules”) with youngsters and their families Saturday, April17 (~ 10-2) ACS Earth.

Today: Exp.9, “Separation and Identification of an Unknown Mixture” (3 lab periods) “Qualitative analysis” This experiment includes: liquid/liquid.

Spectroscopy: UV spectra MiniQuiz Conclusion Unknown 2/ Introduction Unknown 3: Nitro compounds. Inert Compounds. Today:

Briefly describe a solubility test or classification test (just name and result) that would allow you to distinguish between 1) an aldehyde and a primary.

Volunteers needed To help doing chemistry activities (“Plant smells and molecules”) with youngsters and their families Saturday, April17 (~ 10-2) ACS Earth.

Experiment 8: Multistep synthesis

Carboxylic Acids and Derivatives Milbank High School.

Chapter 4B Solutions.

Carboxylic acids and derivatives

PHYSICAL PROPERTIES OF ORGANIC COMPOUNDS Mr. Maywan Hariono.

Structure and Classification of Amines Amines are derivatives of ammonia, the same way that alcohols are derivatives of water Amines have a nitrogen,

Organic Synthesis (aliphatic compounds)

1Spring, 2011 Organic Chemistry II Carboxylic Acid Derivatives Dr. Ralph C. Gatrone Department of Chemistry and Physics Virginia State University.

1 Solutions Chapter Solutions Solutions are homogeneous mixtures Solute is the dissolved substance –Seems to “disappear” or “Takes on the state”

Double Displacement Reactions

Amines Caffeine. Nitrogen Chemistry Nitrogen will readily form 3 covalent bonds (each atom already has 5 v.e - ) –Carbon forms 4 covalent bonds –Oxygen.

Solutions Solubility -the amount of solute that can be dissolved to form a solution. Solvent – the substance in a solution present in the greatest amount.

Solubility:  Solubility is a characteristic physical property referring to the ability for a given substance, the solute, to dissolve in a solvent. It.

Chapter 16 Organic Chemistry In this chapter, we will explore basic organic concepts including nomenclature, structure, and functional groups.

Experiment 9. Identification of Unknowns. sol ether insol sol AA insol 5% NaOH insol sol 5% NaHCO 3 sol insol 5% HCl 96% H 2 SO 4 sol insol sol insol.

Experiment 10 Group 6 Ken Caceres Christian Daroya Rubycor Duran Jomari Galecio Jessa Pilorin BSBIO1A.

Solubility Like dissolves like Organic compounds are not expected to be soluble in water Rule of Thumb: C/O ratio.

10.3 RXN in AQUEOUS SOLUTIONS. Definitions Solvent – the substance that dissolves the solute Solute - the substance that is dissolved Aqueous – (aq) solution.

Functional Group Atom or group of atoms that replaces a hydrogen atom in a hydrocarbon. Functional groups give the molecule personality.

Chemistry 122 Review Chapter 9. Organic Chemistry - Vocabulary Organic, cracking, hydrocarbon, refining, reforming, saturated, hydrogenation, aromatic,

Organic Qualitative Analysis Determination of functional groups present in an unknown organic compound by their characteristic chemical reactions. You.

CHEM LAB Exam Tips 2.ppt.

Carboxylic Acids And Their Derivatives

Type of compound: Aldehyde Alcohol Amine Ketone Identify an Unknown.

FUNCTIONAL GROUPS. A functional group is a cluster of atoms within a molecule that have specific reactivity patterns Compounds with the same functional.

INFRARED (IR) SPECTROSCOPY. IR Spectroscopy – The Spectrum.

General, Organic, and Biological Chemistry Copyright © 2010 Pearson Education, Inc.1 Chapter 18 Amines and Amides 18.2 Properties of Amines.

Questions of the day: Which absorptions on an IR spectrum would show you a)that your unknown is probably a ketone or aldehyde? b) that your unknown is.

Chapter 15 Amine and Nitriles

Qualitative Analysis pre-lab lecture

Steps in preparing a solution of known molar concentration: 250 mL 1) Decide how much (volume) solution you want to make and what concentration (Molarity)

Carboxylic Acids. Introduction The functional group of carboxylic acids consists of a C=O with -OH bonded to the same carbon. Carboxyl group is usually.

Ch. 7 Alcohols and Phenols BY MAHWASH HAFEEZ. General Formulas and Functional Groups Both of these families contain a hydroxyl group (OH) as functional.

Infra-red Spectroscopy

Experiment 9: Identification of Unknowns April 4/5/6, 2017

Acyl chlorides.

Chapter 1.7 Amines and Amides

Reaction Schematic Reduction Hydration Carbonyl Alkene Alcohol

Chapter 10 Carboxylic Acids

Your Grignard reaction results? Introduction to Unknowns

Chapter 10 Carboxylic Acids

1.7 AMINES AND AMIDES.

Identify an Unknown Type of compound: Aldehyde Alcohol Amine Ketone.

Functional Groups Unit 3.

Section 2: Functional Groups (chapter 23)

Acid + Base → Carboxylate salt + NH4+

Acyl chlorides.

CH 2-3 Survey of other Functional Groups in Organic Compounds

Atom or group of atoms that replaces a hydrogen atom in a hydrocarbon.

Carboxylic Acids And Their Derivatives

Organic Functional Groups

Unknown #2 Type of compound: Aldehyde Alcohol Amine Ketone.

Presentation transcript:

Questions of the day: What is the functional group of Carboxylic Acids Anhydrides Esters Amides Amines Nitro ???

Today: Unknown #2: Carboxylic Acids, Esters, Amides Amines (Cl, Br, nitro) MiniQuiz

Preliminary test results? Mp., bp. Which would you expect to have relatively high/relatively low mp.s / bp.s? Odor Which would you expect to have a bad smell/a pleasant smell (human perspective…) Color Which would you expect to have a color? Preliminary tests? Solubility Classification tests Derivatives Spectra Carboxylic Acids Anhydrides Esters Amides Amines Nitro

the ratio of the velocity of light in air to the velocity of light in a given medium. sin incident angle/sin refracted angle a constant at a given temperature. an important physical property of liquids (and gases and transparent solids!) Air has a refractive index of at 273 K/760 mm Hg for the yellow sodium D-line at nm. Refractive Index:

What type of information do you get if your unknown 1. is soluble in water? 2. is soluble in NaOH and in NaHCO 3 ? 3. is soluble in NaOH only, not in NaHCO 3 ? 4. is soluble in dilute HCl solution? 5. is soluble only in conc H 2 SO 4 ? 6. is not soluble in any of the above solvents? Solubility Tests Carboxylic Acids Anhydrides Esters Amides Amines Nitro Preliminary tests Solubility? Classification tests Derivatives Spectra

Carboxylic Acids Good mp.s (consider recrystallization) Neutralization Equivalent (titration) experimental instructions on our webpage Solubility Classification tests Derivatives (not done) Spectra Derivatives (we do not do them in the lab): Convert carboxylic acid into acid chloride first, then into amides RCO 2 H+NaOH RCO 2 (–) Na (+) aq. + H 2 O HCl

Esters Classification Test Deep-red to purple Preliminary tests? Solubility Classification tests Derivatives Spectra Compare with known ester! a hydroxamic acid

Derivatives for Esters Hydrolyze (experimental instructions on our webpage) … to its carboxylic acid component (mp.) …. and its alcohol component alcohol derivative Preliminary tests? Solubility Classification tests Derivatives Spectra

Amines Derivatives Picrates Benzamides: amine + benzoyl chloride NH 2 OH NO 2 2 O 2 N + Preliminary tests? Solubility Classification tests Derivatives Spectra

Carboxylic Acids IR: H-NMR: Preliminary tests? Solubility Classification tests Derivatives Spectra OH in gas phase (non-H-bonded)

Amines IR H-NMR Voodoo Lily Amorphophallus

Amides H-NMR : Preliminary tests? Solubility Classification tests Derivatives Spectra IR?

Nitro Compounds Typical properties? Classification test: Always do with a known compound to compare! Derivatives (if no other functional group available): Reduce to amine and then prepare amine derivatives Preliminary tests? Solubility Classification tests Derivatives Spectra Iron (II) Hydroxide Test for Nitro Groups Nitro Compounds

IR UV MiniQuiz on today’s class Inert Compounds: Alkanes Aromatic Hydrocarbons Alkyl halides Next time:

Briefly describe one test (name and result) that would allow you to distinguish between a) an aldehyde and a primary alcohol. b) an alcohol and a phenol. MiniQuiz 7 Questions: