Chem lab report exp 6 copy

Kinetics and thermodynamics  H+ catatylzes the esterification reaction of alcohols with carboxylic acids. Describe at least two ways the addition of H+ can increase the rate of the reaction. based on the image

Esterication is the reaction of a carboxylic acid (RCOOH) with an alcohol (R'OH) to form an ester (RCOOR') with loss of water. Equation [1] is an example of an intermolecular esterication reaction. Equation [2] is an example of an intramolecular esterication reaction; that is, the carboxylic acid and alcohol are contained in the same starting material, forming a cyclic ester as product. The equilibrium constants for both reactions are given. Explain why Keq is different for these two apparently similar reactions.

In the chemical reaction shown below, 0.0100 mol of 2-methyl-2-propanol is reacted with 0.0175 mol of ammonium bromide and 0.0350 mol of ammonium chloride in the presence of 0.100 mol of sulfuric acid. What are the products of this reaction and their respective ratio to one another? OH 0000 NH4*Cr NH₂ Br H₂SO4 H₂O 2-methyl-2-propanol 2-bromo-2-methylpropane and 2-chloro-2-methylpropane (ratio: 1:2; respectively) 2-bromo-2-methylpropane and 2-chloro-2-methylpropane (ratio: 1:1; respectively) 2-bromo-2-methylpropane and 2-chloro-2-methylpropane (ratio: 2:1; respectively) 1-bromo-2-methylpropane and 1-chloro-2-methylpropane (ratio: 1:2; respectively) ?+ ?

Oxidation and Reduction of Aldehydes and Ketones (Section 15-10) 15-75 Draw the structural formula of the carboxylic acid formed when each of the following aldehydes is oxidized. a. CH,-C-H CH3 b. CH;-CH,-ČH-CH,-C-H с. Н-С—Н ÇI ÇI d. CH;—CH,—CH-CH—CH2—С-н

Diazomethane, CH2N2, is used in the organic chemistry laboratory despite its danger because it produces very high yields and is selective for reaction with carboxylic acids. Write the products of the following reactions.

Write the chemical equation for a pentanoate ion acting as base when it reacts with hydrochloric acid (HCI). Which is formula of this rule of reaction?

Name: 2) When water is introduced into an ester under high temperature conditions, esters are hydrolyzed into their carboxylic acid and alcohol components. Draw the structure of the resulting carboxylic acid and alcohol when the ester shown below is hydrolyzed. + H20 3) Why is it important that the test tube be thoroughly dry before making esters? Use the principles of chemical equilibrium to explain your answer.

Write an equation for the acid-base reaction between 2,4-pentanedione and sodium eth- oxide and calculate its equilibrium constant, K. The pK, of 2,4-pentanedione is 9; that of ethanol is 15.9. CH,CCHÖCH, + CH,CH,O Na* H 2,4-Pentanedione Sodium ethoxide

In an esterification reaction, a carboxylic acid reacts with an excess of alcohol in acidic conditions to form an ester. Draw the structure of the ester product in the reaction between pentanoic acid and 1‑propanol. pentanoic acid+ 1-propanol= ester+ H20  structure of ester product needed

7 Identify the functional group and the IUPAC name for each of the three compounds in the reaction below: H₂SO4(aq) Compound 1 CH₂COOH (1) + CH₂(CH₂)₂OH(1) I || || Functional Group carboxyl hydroxyl Ester linkage + CH3COO(CH₂) CH₂(1) + H₂O(1) IV III IUPAC Name → + +

Carboxylic acids are acidic enough to dissolve in both 10% NaOH and NaHCO3. Phenols, ArOH, are weak acids and most phenols will not dissolve in 10% NaHCO3. How would you separate a mixture of a carboxylic acid (RCOOH), an amine (RNH2), a phenol (ArOH) and a hydrocarbon (RH) using chemically active extraction? Draw a flow chart to illustrate your separation. Show each species in the aqueous and organic layers.

9:1 A docs.google.com give name for the following compound но Но إجابتك give the name of the product alcohol + 2KOH إجابتك * give name for the following compound но إجابتك

We have studied Fischer esterification, in which a carboxylic acid is reacted with an alcohol in the presence of an acid catalyst to form an ester. Suppose that you start instead with a dicarboxylic acid such as terephthalic acid and a diol such as ethylene glycol. Show how Fischer esterification in this case can lead to a macromolecule with a molecular weight several thousand times that of the starting materials. HO, OH poly(ethylene terephthalate) (РET) НО HO, 1,4-Benzenedicarboxylic acid (Terephthalic acid) 1,2-Ethanediol (Ethylene glycol) the material produced in this reaction is a high- molecular-weight polymer, which can be fabricated into Mylar films and into the textile fiber known as Dacron polyester.

An important step in one synthesis of carboxylic acids is the deprotonation of diethyl malonate and its alkyl-substituted derivative: Base CH;CH2O OCH,CH3 CH;CH,0 OCH2CH3 H2 Diethyl malonate Base CH;CH,0 °C `OCH,CH3 CH;CH,O OCH,CH3 R Alkyl substituted diethyl malonate NaOH can deprotonate diethyl malonate effectively, but NaOC(CH3)3 is typically used to deprotonate the alkyl-substituted derivative. Explain why.

THE ZnCl2 / HCl TEST DETERMINES THE REACTIVITY OF ALCOHOLS. ORDER IN ORDER FROM GREATEST TO LOWEST REACTIVITY METHANOL-TERBUTANOL-2PROPANOL TERBUTANOL-METHANOL-METHANOL   METHANOL-2 PROPANOL-TERBUTANOL

Drinking of too much alcohol cause liver cirrhosis because ethanol is converted to toxic * Acetone Ethanal Acetic acid Methyl ethanoate Ethers have lower boiling points compared to alcohols of comparable mass because they form dipole-dipole interaction among themselves. they cannot form hydrogen bond among themselves. they can form hydrogen bond with water. they are solvents in organic reactions. Dehydration of two molecules of methanol under acidic condition (H2SO4) at high temperature will produce * Acetone Ethanal Acetic acid Methoxymethane

Phenols are aromatic rings with an alcohol functional group attached directly to the ring. These compounds have unique acidity and solubility for alcohol groups. Predict the solubility of this phenol in water.

Use the following molecules to answer the worksheet.

Which among the representative compounds is/are soluble in NaOH? Write the acid-base reactions involved.  1-butanol 2-butanol tert-butyl-alcohol phenol diisopropyl ether

Write the structural formula for butanoic acid, 4-iodo-3-methylpentanoic acid and o-tribromomethylbenzoic acid Write the structure of the acid and the alcohol from which each ester could be synthesized for pineapple flavoring and apple flavoring

Which compound is a tertiary alcohol that may not be oxidized by H2CrO4 or MnO2? Which compound is a secondary alcohol that may be oxidized to a ketone by MnO2? Which compound is an alcohol that may be oxidized to an aldehyde by PCC?