Multiple Choice
Which of the following is not a characteristic of a strong acid?
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3. Acids and Bases
Acids and Bases
Multiple Choice
Which of the following statements correctly describes the concept of acid strength in organic chemistry?
A
Acid strength is determined by the ability of an acid to accept a (proton).
B
Acid strength is determined by the molecular weight of the acid.
C
Acid strength is determined by the ability of an acid to donate a (proton).
D
Acid strength is determined by the number of hydrogen atoms in the acid molecule.
Verified step by step guidance1
Understand the definition of an acid in the context of organic chemistry. According to the Brønsted-Lowry theory, an acid is a substance that can donate a proton (H⁺ ion) to another substance.
Evaluate the first statement: 'Acid strength is determined by the ability of an acid to accept a proton.' This describes a base, not an acid, as bases accept protons.
Evaluate the second statement: 'Acid strength is determined by the molecular weight of the acid.' Molecular weight does not directly determine acid strength; rather, it is the ability to donate a proton.
Evaluate the third statement: 'The correct answer is: Acid strength is determined by the ability of an acid to donate a proton.' This aligns with the Brønsted-Lowry definition of an acid.
Evaluate the fourth statement: 'Acid strength is determined by the number of hydrogen atoms in the acid molecule.' The number of hydrogen atoms does not determine acid strength; it is the ability to donate a proton that matters.
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