Answer:
To determine the enthalpy and entropy of dissolving a compound, you need to measure the Ksp at multiple temperatures. Then, plot ln(Ksp) vs. 1/T. The slope of the plotted line relates to the enthalpy (ΔH) of dissolving and the intercept of the plotted line relates to the entropy (ΔS) of dissolving.
Explanation:
Hello there!
In this case, according to the given information, it turns out possible for us use the thermodynamic definition of the Gibbs free energy and its relationship with Ksp as follows:

Thus, by combining them, we obtain:

Which is related to the general line equation:

Whereas:

It means that we answer to the blanks as follows:
To determine the enthalpy and entropy of dissolving a compound, you need to measure the Ksp at multiple temperatures. Then, plot ln(Ksp) vs. 1/T. The slope of the plotted line relates to the enthalpy (ΔH) of dissolving and the intercept of the plotted line relates to the entropy (ΔS) of dissolving.
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True, All non- zero digits are considered Significant.
Answer: 
concentration of
= 0.50 M
concentration of
= 0.25 M
Explanation:
The dissociation equation of
is:

According to stoichiometry:
1 mole of
gives 2 moles of 
Thus 0.25 moles of
gives =
moles of 
Similarly,
1 mole of
gives = 1 mole of 
Thus 0.25 moles of
gives =
moles of 
Thus the concentration of
and
are 0.50 M and 0.25 M respectively.
Answer:
at the oxygen end electron density lies
Explanation:
Carbonyl group is a functional group which is formed when oxygen combined with carbon through a double bond
So the carbonyl group is
in this the oxygen has more electronegativity than carbon so oxygen attracts the electron density towards itself
So the electron density lies on the oxygen in a carbonyl group