1. In paper chromatography, is the substance being tested the solute or solvent? Explain your answer.
I think the substance being tested is a solvent. I think this because it is being dissolved to form the ink on the filter paper.
2. A bucket of paint spills on your classroom floor. How could you use your knowledge of dissolving to help clean up the paint?
I actually have no idea.
Can my number 1 question be checked, is it right? And for number 2, I need help.
1. In paper chromatography, the substance being tested is the solute, not the solvent. In chromatography, a mixture of substances is separated based on their different solubilities in a solvent. A solute is the substance that is being dissolved in a solvent. In this case, the ink or mixture being tested is placed on the filter paper and the solvent, which is usually a liquid, is allowed to travel up the paper. As the solvent moves, it carries different components of the ink with it at different rates, resulting in separation. Therefore, the substance being tested is the solute.
2. If a bucket of paint spills on your classroom floor, your knowledge of dissolving can help you clean up the paint. Here's how:
- Blot: First, you should immediately blot the spilled paint with paper towels or a absorbent cloth. Gently press down on the paint to soak up as much of it as possible. Do not rub or spread the paint, as it may make the stain worse.
- Dilute: If the paint is still fresh, you can try diluting it with water. Pour a small amount of water onto the paint stain and gently rub it in circular motions with a cloth to help break down the paint molecules.
- Detergent Solution: If the paint has already dried, you can create a detergent solution. Mix a few drops of mild dishwashing detergent with warm water. Soak a cloth in this solution and then gently dab it onto the paint stain. Avoid using excessive force as it may cause the paint to spread or damage the flooring.
- Scrape: In case there is any hardened paint left on the floor, you can use a plastic scraper or a blunt knife to gently scrape it off. Be careful not to scratch or damage the surface.
- Rinse: After removing as much paint as possible, rinse the affected area with clean water to remove any residue from the cleaning agents.
- Dry: Finally, pat the area dry with a clean towel or allow it to air dry.
Remember, the best method for cleaning up paint spills may depend on the type of paint and the flooring material. It is always recommended to consult the manufacturer's instructions or seek professional assistance if unsure.