(a)
Interpretation:
The  of water at given temperatures should be determined.
Concept Introduction:
: The concentration of hydrogen ion is measured using  scale. The of a solution is a figure that expresses the acidity or the alkalinity of a given solution.
It is defined as the negative base-10 logarithm of the hydrogen or hydronium ion concentration.
If the value of  is less than, then the solution is acidic whereas if the value of  is greater than, then the solution is basic.
(b)
Interpretation:
The  at given temperature should be determined.
Concept Introduction:
Ionic-product constant for water: It is the hydronium ion concentration times the concentration present in the solution.
The  will apply to all aqueous solution.
For acidic solution is large that is
For basic solution is large that is
(c)
Interpretation:
The dissociation of water should be identified that whether it is an exothermic or endothermic reaction.
Concept Introduction:
Endothermic reaction: The reaction is considered as endothermic when heat energy is absorbed from surroundings during reaction.
Exothermic reaction: The reaction is considered as endothermic when heat energy is released to the surroundings during reaction.
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Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
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