What happens to the conductivity of a weak acid solution as it becomes more diluted?

A. Conductivity increases

B. Conductivity decreases

C. Conductivity remains constant

D. It depends on the acid

Answer Explanation:

As a weak acid solution becomes more diluted, the concentration of ions decreases, leading to a decrease in conductivity. Weak acids only partially ionize in solution, resulting in fewer ions available to conduct electricity.

Therefore, the Correct Answer is B.

Q #1: What happens to the conductivity of a weak acid solution as it becomes more diluted?

A. Conductivity increases

B. Conductivity decreases

C. Conductivity remains constant

D. It depends on the acid

Answer Explanation

As a weak acid solution becomes more diluted, the concentration of ions decreases, leading to a decrease in conductivity. Weak acids only partially ionize in solution, resulting in fewer ions available to conduct electricity.
Q #2: Which of the following metals will not react with hydrochloric acid (HCl)?

A. Iron (Fe)

B. Magnesium (Mg)

C. Zinc (Zn)

D. Gold (Au)

Answer Explanation

Gold (Au) is a noble metal and does not react with hydrochloric acid (HCl). Iron, magnesium, and zinc are reactive metals that can undergo displacement reactions with hydrochloric acid to produce hydrogen gas.
Q #3: How do acids affect the electrical conductivity of a solution?

A. They decrease conductivity

B. They increase conductivity

C. They have no effect on conductivity

D. It depends on the concentration of the acid

Answer Explanation

Acids increase the electrical conductivity of a solution. This is because acids ionize in water to produce hydrogen ions (\(H^+\)), which carry an electric charge.

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What happens to the conductivity of a weak acid solution as it becomes more diluted?

More Questions on TEAS 7 Science

Q #1: What happens to the conductivity of a weak acid solution as it becomes more diluted?

Answer Explanation

Q #2: Which of the following metals will not react with hydrochloric acid (HCl)?

Answer Explanation

Q #3: How do acids affect the electrical conductivity of a solution?

Answer Explanation

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