Multiple Choice
Why are changes in pH and temperature critical to the proper functioning of an enzyme?
3. Acids and Bases
Acids and Bases
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Which of the following statements best explains why the strength of an acid is not a fixed value?
A
The strength of an acid depends on the concentration of the acid in solution.
B
The strength of an acid is determined solely by its molecular weight.
C
The strength of an acid is influenced by the solvent in which it is dissolved.
D
The strength of an acid is constant regardless of temperature changes.
Verified step by step guidance1
Understand that the strength of an acid is related to its ability to donate protons (H⁺ ions) in a solution.
Recognize that the solvent can stabilize or destabilize the ions formed when the acid dissociates, affecting the acid's strength.
Consider how different solvents can have varying dielectric constants, which influence the extent of ionization of the acid.
Acknowledge that the solvent's ability to solvate the ions can either enhance or reduce the acid's dissociation, thus altering its strength.
Conclude that the strength of an acid is not a fixed value because it is influenced by the solvent, which affects the acid's ionization and proton donation ability.
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