Compare the colors of impure naphthalene and recystallized naphthalene?
If you performed the experiment you saw them and should be able to compare the colors.
To compare the colors of impure naphthalene and recrystallized naphthalene, you will need to visually examine both samples. Here's how you can do it:
1. Obtain two separate samples of naphthalene: one impure sample and one recrystallized sample. Ensure both samples are in solid form.
2. Place the samples side by side on a clean, white surface to provide a consistent background.
3. Observe the color of each sample. Note any differences in color, intensity, or presence of impurities.
Impure naphthalene may exhibit a range of colors, depending on the impurities present. It might appear yellowish, off-white, or even slightly grayish. The impurities can contribute to a darker or duller appearance.
On the other hand, recrystallized naphthalene is typically purer and tends to have a more pronounced white color. The recrystallization process helps remove impurities, resulting in a clearer and brighter appearance.
Please note that naphthalene can undergo further transformation by exposure to heat or light. This can cause the color to change or the crystals to sublimate, so it's important to compare the samples under controlled conditions and in their solid state.
To compare the colors of impure naphthalene and recrystallized naphthalene, follow these steps:
1. Obtain a sample of impure naphthalene and a sample of recrystallized naphthalene.
2. Observe the color of the impure naphthalene sample. Impure naphthalene typically appears as a yellowish or brownish solid.
3. Observe the color of the recrystallized naphthalene sample. Recrystallized naphthalene is typically a white, crystalline solid.
4. Compare the colors of the two samples. The impure naphthalene sample will likely have a darker or more yellowish/brownish color, while the recrystallized naphthalene sample will have a lighter, white color.
In summary, impure naphthalene usually has a yellowish or brownish color, while recrystallized naphthalene is typically white and crystalline.