1.

Ethylacetate is formed by the reaction between ethanol and acetic acid andtheequilibriumis represented as: (i) Writethe concentration ratio (reaction quotient), Qc,for this reaction (note: water is not in excess and is not a solventin this reaction)(ii) At293 K, if one starts with 1.00 mol of acetic acid and 0.18 mol ofethanol, there is 0.171 mol of ethyl acetate in the final equilibriummixture. Calculate the equilibrium constant.(iii) Starting with 0.5 mol of ethanol and 1.0 mol of acetic acid andmaintaining it at 293 K, 0.214 mol of ethyl acetate is found aftersometime. Has equilibrium been reached?

Answer»

Ethyl
acetate is formed by the reaction between ethanol and acetic acid and
the


equilibrium
is represented as:




(i) Write
the concentration ratio (reaction quotient), Qc,
for this reaction (note: water is not in excess and is not a solvent
in this reaction)



(ii) At
293 K, if one starts with 1.00 mol of acetic acid and 0.18 mol of
ethanol, there is 0.171 mol of ethyl acetate in the final equilibrium
mixture. Calculate the equilibrium constant.



(iii)
Starting with 0.5 mol of ethanol and 1.0 mol of acetic acid and
maintaining it at 293 K, 0.214 mol of ethyl acetate is found after
sometime. Has equilibrium been reached?



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