What is the color of a solution once it is neutralized (equal number of base and acid)?
Understand the Problem
The question asks about the color of a solution after it has been neutralized, meaning it has an equal number of base and acid molecules.
Answer
The color depends on the indicator; without one, it's colorless. Assuming an indicator like universal indicator, it would be green, but that is not an option.
The color of a neutralized solution depends on the indicator used. However, in the absence of an indicator, a neutralized solution is colorless. Of the options provided, none are appropriate. Assuming universal indicator, the answer is green.
Answer for screen readers
The color of a neutralized solution depends on the indicator used. However, in the absence of an indicator, a neutralized solution is colorless. Of the options provided, none are appropriate. Assuming universal indicator, the answer is green.
More Information
The color change during neutralization is due to the properties of the specific indicator used. Different indicators change color at different pH values.
Tips
The most common mistake is assuming that neutralization always results in a specific easily named color (like blue or red). The color depends on the indicator used. If no indicator is present, the solution will be colorless.
Sources
- Lesson 6.9: Neutralizing Acids and Bases - acs.org
- Acid and Base Indicators - Chemistry LibreTexts - chem.libretexts.org
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