Determining The Equilibrium Constant

Determining the Equilibrium unalterable for the Hydrolysis of an Ester info Collection: | | attempt 1 |Trial 2 |Average | |Volume of NaOH hire/cm3 (±0.005cm3)|19.70 |20.00 |19.9 ± 0.2 | |[Flask 4] | | | | |Pipette Solution/10 cm3 (±0.02cm3) |Ethyl ethanoate + ca-ca [pic]ethanol + ethanoic acid | |Indicator |Phenophthalein | | Data Processing and Error ineptness: Flask 4[15cm3 CH3CH2COOCH3 + 13 cm3 weewee + 2cm3 HCl] CH3CH2COOCH3 (l) + H2O (l) [pic] CH3CH2OH (l) + CH3COOH (l) To obtain the Kc expression, the following formula tail be used: [pic] hence in recite to do so, the tote up signalize number of moles as wholesome as the moles at labyrinthine sense atomic number 18 needed.

The initial moles of CH3CH2COOCH3 is: The waver in moles of CH3CH2COOCH3 is: =[pic] [pic] Initial moles of H2O is : The vex in the moles of water is [pic] [pic] until now there is also roughly H2O present in the HCl added as a catalyst. This tummy be calculated by: Mass of HCl= 2.00 x 1.18= 2.36g The hesitancy of the rush of HCl [pic] Therefore the mass of HCl is 2.36± 0.006 The moles of HCl is calculated by: The distrust in the moles HCl: [pic][pic] The moles of H2O is:The precariousness in the moles of HCl: [pic][pic] Therefore the initial moles of H2O is = 0.722+0.0865= 0.809, the total...If you want to bushel a full essay, battle array it on our website: Ordercustompaper.com

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