Which of the following is considered acidic?
Soap
Soap
Ammonia
Ammonia
Lime Water
Lime Water
Vinegar
Vinegar
Vinegar is considered acidic.
To determine which of the following substances is considered acidic, you can use a simple experiment called the litmus test. Litmus paper is a common and easily accessible tool used to identify the pH of a substance.
Here's how you can perform the litmus test:
1. Obtain a piece of litmus paper. It is usually red or blue in color.
2. Take each substance (soap, ammonia, lime water, and vinegar) and place a small amount of each on a separate clean surface or into separate small containers.
3. Take the litmus paper and dip it into one of the substances. Make sure the paper is fully immersed in the substance for a few seconds.
4. Observe the litmus paper. If it turns red, it indicates that the substance is acidic. If it turns blue, it indicates that the substance is basic. If it remains unchanged, it means the substance is neutral.
Based on the litmus test, you can determine which of the substances is considered acidic.
Now, let's go through the list of substances:
1. Soap: Since soap is typically alkaline and not acidic, the litmus paper would not turn red when dipped into soap. It is not considered acidic.
2. Ammonia: Ammonia is alkaline, so the litmus paper would not turn red when dipped into it. It is also not considered acidic.
3. Lime Water: Lime water, which is a solution of calcium hydroxide, is alkaline and would not turn the litmus paper red. It is not considered acidic.
4. Vinegar: Vinegar is a weak acid, specifically acetic acid, so the litmus paper would turn red when dipped in vinegar. Therefore, vinegar is considered acidic.
Therefore, out of the four substances provided, vinegar is the one considered acidic, as confirmed by the litmus test.