Hi, Can you please help me answer this question? I am having trouble figuring it

Question

Hi, Can you please help me answer this question? I am having trouble figuring it out... Can you provide explanations as well?

A) What is the average % deviation of your Keq values (see Chem 206 Exp.1A for a reminder of % deviation)? List three sources of experimental error that are likely responsible for this variability.

My Keq values are:

1) 1.55*10^-1

2) 1.57*10^-1

3) 1.96*10^-1

B) Based on your average value of the equilibrium constant, does the equilibrium favour the formation of the products ethanol and acetic acid, the starting reagents, or neither?

Explanation / Answer

(A)

Mean value =( 0.155+0.157+0.196)/3=0.1693

Average deviation=((0.1693-0.155)+(0.1693-0.157)+(0.196-0.1693))/3=0.017767

percent deviation=0.017767/0.1693*100=10.49%

(B)

Kav=0.1693

lnKav=-1.77<0

G=-RTlnK=-RT(-1.77)=1.77RT>0

The minus sign in definition of G was given so that a negative values of G corresponded to a product-favored process and a positive value to a reactant-favored process.

So Here G>0 so it is a reactant favored process.

So it is not in favor of the formation of the products ethanol and acetic acid.

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