To neutralize a pH 3 solution, use ____.

Rationale

To neutralize a pH 3 solution, use pH 9 solution.

A pH 3 solution is highly acidic, and to neutralize it, a solution with a higher pH is necessary. A pH 9 solution is slightly basic and can effectively raise the pH of the acidic solution towards neutrality, typically around pH 7.

A (Salt solution) YOUR ANSWER

Salt solutions can have various pH levels depending on their composition. While some salts may be neutral, others may still contribute acidity or basicity, making them unreliable for specifically neutralizing an acidic solution. Therefore, a salt solution cannot be guaranteed to effectively neutralize a pH 3 solution.

B (Acidic solution) YOUR ANSWER

Using another acidic solution would further lower the pH, exacerbating the acidity of the original pH 3 solution. This would not help in neutralization; rather, it would increase the level of acidity, leading to a pH that is even lower than 3, which is counterproductive.

C (pH 7 solution) YOUR ANSWER

While a pH 7 solution is neutral and can theoretically help in neutralizing an acidic solution, it may not be sufficient to effectively raise the pH of a strong acid like the one at pH 3. A pH 7 solution may not provide enough base to neutralize the acidity fully, thus not achieving the desired outcome.

D (pH 9 solution) CORRECT

A pH 9 solution is basic, which allows it to effectively neutralize the acidity of a pH 3 solution. By adding a basic solution, the overall pH can be raised towards neutrality (pH 7), making this the best option for neutralization.

Conclusion

To neutralize a pH 3 solution effectively, a basic solution such as one with a pH of 9 should be used. Other options either do not contribute to neutralization or worsen the acidity. Understanding the pH scale and the nature of solutions is crucial for effective neutralization in various chemical contexts.

To neutralize a pH 3 solution, use ____.

To neutralize a pH 3 solution, use pH 9 solution.

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