Saturday
August 23, 2014

Homework Help: chemistry

Posted by jsame on Wednesday, June 18, 2014 at 7:12am.

) Calculate the amount of unreacted aqueous ethanoic acid (CH3COOH(aq)) in the sample taken for titration with aqueous potassium hydroxide(KOH(aq)). Clearly show the steps in your calculation. (1 mark)

(v) Hence calculate the amount of aqueous ethanoic acid CH3COOH(aq)) in the sealed flask at equilibrium. Clearly show the steps in your calculation and comment on any assumptions that you make. (2 marks)
(vi) Using the amount of aqueous ethanoic acid (CH3COOH(aq)) present at equilibrium, calculate the amount of ethanol that reacted in the process of attaining equilibrium. Clearly show the steps in your calculation / reasoning. (3 marks)
(vii) Calculate the amount of ethanol (C2H5OH(aq)), ethylethanoate (CH3COOC2H5(aq)) and water (H2O(l)) present in the reaction mixture at equilibrium. Clearly show the steps in your calculation /reasoning. (4 marks)
(viii) Calculate the value of Kc(323K) clearly showing the steps in your calculation.

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