Ethanoate - Study guides, Class notes & Summaries

Unit 4: Esters. How can you make simple esters? Heating a mixture of ethanoic acid and ethanol with a few drops of concentrated sulfuric acid produces ethyl ethanoate Ethanoic acid + ethanol -> ethyl ethanoate + water CH3COOH + CH3CH2OH -> CH3COOCH2CH3 + H2O Starting materials: ethanol and ethanoic acid Catalyst: concentrated sulfuric acid Conditions: heat The concentrated sulfuric acid isn't written into the equation because it is a catalyst and therefore isn't consumed in th...

AQA A-level CHEMISTRY 7405/3 Paper 3 Version: 1.0 Final *JUN* IB/M/Jun23/E9 7405/3 For Examiner’s Use Question Mark 1 2 3 4 5 6 Section B TOTAL Friday 23 June 2023 Morning Time allowed: 2 hours Materials For this paper you must have: • the Periodic Table/Data Booklet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instructions • Use black ink or black ball-poin...

Aims of the experimentTo investigate the purity of ethyl-ethanoate produced in the laboratory.To make comparison between company/industrial and laboratory manufacture of ethylethanoate to the industrial production.To make analysis

Unit 4: Esters. How do we draw and name ester? In order to work out the structure of the ester formed when an alcohol and a carboxylic acid react together we start by drawing them separately so that their OH groups are next to each other Then we remove the H and the OH to form water and join what's left For example: H H | | H - C - C - O - H ETHANOL | | H H and H O | || H - C - C ETHANOIC ACID | H O - H Then the H breaks off the ethanol which becomes ethyl and the OH bre...

Week 12 - carboxylic acids and esters practice Questions and Answers What is the name of CH 3COOCH 2CH 3? Ethyl ethanoate Propyl methanoate Methyl ethanoate Methyl methanoate Ethyl ethanoate What is the name of CH 3CH 2CH(CH 2CH 3)COOH? Hexanoic acid 2-ethylbutanoic acid 3-ethylbutanoic acid 2-methylbutanoic acid 2-ethylbutanoic acid What is the name of CH 3CH 2CH 2COOH? Hexanoic acid Heptanoic acid Propanoic acid None of the above None...

PREPARATION AND NAMING OF ESTERS FROM CARBOXYLIC ACIDS. Esters are produced when carboxylic acids are heated with alcohols in the presence of an acid catalyst. The catalyst is usually concentrated sulphuric acid. Dry hydrogen chloride gas is used in some cases, but these tend to involve aromatic esters (ones where the carboxylic acid contains a benzene ring). The esterification reaction is both slow and reversible. The equation for the reaction between an acid RCOOH and an alcohol R'OH (wh...

TOF steps - CORRECT ANSWER-1) ionisation 2) acceleration 3) ion drift 4) detection 5) analysis Electron impact - CORRECT ANSWER-Sample vaporised and electron gun fires high energy electrons at it which knock off 1 electron from each particle, making them 1+ ions NB- can knock off more than one e or break molecular ion electrospray ionization - CORRECT ANSWER-Sample dissolved in volatile solvent then injected through needle to give fine mist which is attached to positive end of high v...

Production of an Ester - Nail Varnish Remover (Ethyl Ethanoate). Whole Assignment: Includes the Experiment Theory, Techniques, Method, Risks, Results, Calculations. Graded at DISTINCTION. References also included.

Industrial method Ethyl ethanoate is made by esterification. A mixture of sulfuric acid, acetic acid and ethanol are heated and poured into an esterifying column. The mixture that evaporates first goes into a second column. 85% of ethyl acetate is separated. After distillation occurs, water is added. There are now two layers. The top layer is poured into a refluxing column. The residue left, is then distilled and removed of any impurities