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Multiple Choice
Which of the following is not a factor that affects the strength of an acid?
A
Resonance stabilization of the conjugate base
B
Presence of a catalyst
C
Size of the atom bonded to hydrogen
D
Electronegativity of the atom bonded to hydrogen
Verified step by step guidance
1
Understand that the strength of an acid is determined by its ability to donate a proton (H⁺) and the stability of the resulting conjugate base.
Recognize that resonance stabilization of the conjugate base increases acid strength because it delocalizes the negative charge, making the conjugate base more stable.
Consider the size of the atom bonded to hydrogen: larger atoms can better stabilize the negative charge in the conjugate base, thus increasing acid strength.
Evaluate the electronegativity of the atom bonded to hydrogen: more electronegative atoms hold onto electrons more tightly, making it easier for the acid to donate a proton, thus increasing acid strength.
Identify that the presence of a catalyst does not directly affect the intrinsic strength of an acid, as catalysts typically speed up reactions without altering the equilibrium position or the inherent properties of the reactants.