An acid and its conjugate base
An acid and its conjugate base
- A) are oppositely charged
- B) differ only by a hydroxide ion
- C) differ only by an electron
- D) differ only by a proton
Correct Answer: D) differ only by a proton
Explanation
This Chemistry question is asking about the relationship between an acid and its conjugate base. An acid is a substance that donates a proton (H+) to another substance, while a base is a substance that accepts a proton. When an acid donates its proton, it becomes a conjugate base. Similarly, when a base accepts a proton, it becomes a conjugate acid.The question is asking which of the given options best describes the relationship between an acid and its conjugate base. The correct answer is Option D: an acid and its conjugate base differ only by a proton. This means that an acid can lose its proton to become its conjugate base, and its conjugate base can gain a proton to become the original acid.
It is important to note that the other options are not correct. Option A is incorrect because an acid and its conjugate base can have the same charge, depending on the specific acid and base involved. Option B is incorrect because a hydroxide ion (OH-) is not involved in the relationship between an acid and its conjugate base. Option C is incorrect because an electron is not involved in the transfer of a proton between an acid and its conjugate base.
Understanding the relationship between acids and bases is important in Chemistry, as it is the basis for the concept of pH and acid-base reactions. For more information, please see the recommended textbooks.