The Equilibrium Constant of an Ester Hydrolysis Reaction Julia Stanley CHM 152 LL Dr. Asmita Kane Budruk Goal of the lab: The purpose of this laboratory is to determine the equilibrium constant‚ Kc‚ for the acid-catalyzed reaction between an unknown ester and water to produce an unknown alcohol and an unknown carboxylic acid. I was using Unknown Ester #3 with a density of 0.9342 and Molar Mass of 74.08 g/mol; alcohol with density 0.7914 and Molar Mass 32.04 g/mol. Chemical
Premium Sodium hydroxide Chemical reaction Functional group
The Equilibrium Constant of an Ester Hydrolysis Reaction Jesus Flores March 30th‚ 2015 Abstract: This experiment was conducted in order to discover the Kc‚ equilibrium constant‚ of a hydrolysis reaction of an unknown ester #2‚ unknown acid‚ and alcohol #2 products. The first week consisted of creating the reaction mixtures in bottles‚ next was preparing a NaOH solution while neutralizing with KHP. The final week consisted of titrating the bottles with the NaOH solution prepared previously
Premium Ester Chemical reaction Sodium hydroxide
HYDROLYSIS OF ESTERS Anhydrous alkanoic acids react with alcohols in the presence of heated sulphuric acid (H2SO4) to form an ester and water. This process is known as esterification. This can be represented by the equation: Alkanoic acid + Alcohol (means reversible eq) ester + water Esters occur naturally in fruits and flowers and are described as oily‚ sweet smelling liquids. Vegetable oils and animal fats are esters of long-chain acids. Esters can undergo a range of reactions and
Premium Acetic acid Ester Sodium hydroxide
The Equilibrium Constant of an Ester Hydrolysis Reaction Abstract: The results from this experiment show four different Kc equilibrium constants of: .1522 for bottle two‚ .1853 for bottle three‚ .2094 for bottle four‚ and .2678 for bottle five. The average Kc value came out to be .2037 for all four bottles. Purpose: The purpose of this lab is to determine the equilibrium concentrations of an organic acid‚ an alcohol‚ an ester‚ and water in four bottles with varying measurements of each
Free PH Acid dissociation constant Hydrochloric acid
Determination of the Equilibrium Constant of an Unknown Ester Hydrolysis Reaction Abstract The experiments to follow determined that the equilibrium concentrations of the reaction: ester + water ↔ alcohol + acid‚ are equal to 0.0363 moles of ester‚ 0.2852 moles of water‚ and 0.0268 moles each of alcohol and acid. Using this information the equilibrium constant was determined to be 0.06938. 1. Introduction In this lab the equilibrium constant‚ Kc‚ for the acid catalyzed reaction between
Premium Chemistry Chemical equilibrium Chemical reaction
The Equilibrium Constant of an Ester Hydrolysis Reaction CHM 152LL Section 33263 March 28‚ 2014 John Weide Abstract: The purpose if this experiment is to determine the equilibrium constant of an unknown alcohol. In this experiment unknown alcohol number three and unknown ester number three were used. The equilibrium constant was found by titrating a series of reactions containing H2O‚ HCl‚ and the unknown ester with only the last solution containing the unknown alcohol
Premium PH Titration Mole
SPECTROPHOTOMETRIC DETERMINATION OF EQUILIBRIUM CONSTANT OF A REACTION UNIVERSITY OF THE PHILIPPINES‚ DILIMAN QUEZON CITY‚ PHILIPPINES August 2‚ 2013 ABSTRACT The objective of this experiment is to determine the equilibrium constant‚ denoted Keq‚ for the formation of [Fe(SCN)]2+ complex which is a product of the reaction between the ions Fe3+ and SCN-. In performing this experiment‚ solutions containing FeCl3 and KSCN‚ diluted in HCl‚ were measured for their absorbance using a UV-Vis
Premium Concentration Chemical reaction Chemical equilibrium
[pic] |THE MECHANISM FOR THE ACID CATALYSED HYDROLYSIS OF ESTERS | | | |This page looks in detail at the mechanism for the hydrolysis of esters in the presence of a dilute acid | |(such as hydrochloric acid or sulphuric acid) acting as the catalyst. It uses ethyl ethanoate as a typical| |ester.
Premium Hydrogen Acetic acid Atom
Introduction Chemical reactions don’t typically go to completion. Instead‚ the system goes to an intermediate state where the rate of the forward reaction and the rate of the reverse reaction equal each other. At this point‚ the concentrations do not change with time. These reactions are said to be in equilibrium. Equilibrium is depended on a particular temperature‚ and the concentrations of reactants and products have to follow a rule demonstrated by the equilibrium constant Kc. The equilibrium concentrations
Premium Chemical equilibrium Laboratory glassware
Chemical Reactions Objective: The purpose of this lab is to experimentally determine the equilibrium constant‚ Kc ‚ for the following chemical reaction: Fe3+ (aq) + SCN-(aq) ↔FeSCN2+(aq) Background Information: A system is at equilibrium when the rate of the forward reaction is the same as the rate of the reverse reaction. There is no change in concentration for the reactants or products at chemical equilibrium. When the system is disturbed there is a shift to reestablish equilibrium explained
Premium Chemical reaction Chemical equilibrium Chemistry