How does the reaction of an acid with a base affect the pH of the resulting solution?

A. The pH increases

B. The pH decreases

C. The pH remains unchanged

D. It depends on the specific acid and base

Answer Explanation:

When an acid reacts with a base in a neutralization reaction, the pH of the resulting solution remains unchanged if the quantities of acid and base are stoichiometrically balanced. This is because the \(H^+\) ions from the acid react with the \(OH^-\) ions from the base to form water, effectively neutralizing each other.

Therefore, the Correct Answer is C.

Q #1: How does the pH of an acidic solution compare to that of a neutral solution?

A. The pH of an acidic solution is lower than that of a neutral solution

B. The pH of an acidic solution is higher than that of a neutral solution

C. The pH of an acidic solution is the same as that of a neutral solution

D. The pH of an acidic solution is unpredictable

Answer Explanation

The pH scale ranges from 0 to 14, where pH values less than 7 indicate acidic solutions. Therefore, the pH of an acidic solution is lower than that of a neutral solution, which has a pH of 7.
Q #2: Which of the following statements about the taste of acids is true?

A. Acids have a sweet taste

B. Acids have a bitter taste

C. Acids have a sour taste

D. Acids have no taste

Answer Explanation

Acids have a sour taste. This is one of their characteristic properties, though tasting chemicals is not safe and should never be done.
Q #3: Which of the following statements about strong acids is true?

A. They have a low dissociation constant (Ka)

B. They completely dissociate in solution

C. They are poor conductors of electricity

D. They have a pH greater than 7

Answer Explanation

Strong acids completely dissociate into ions when dissolved in water, resulting in a high concentration of \(H^+\) ions in solution. This complete ionization distinguishes them from weak acids.

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How does the reaction of an acid with a base affect the pH of the resulting solution?

More Questions on TEAS 7 Science

Q #1: How does the pH of an acidic solution compare to that of a neutral solution?

Answer Explanation

Q #2: Which of the following statements about the taste of acids is true?

Answer Explanation

Q #3: Which of the following statements about strong acids is true?

Answer Explanation

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