Organic chemistry Topic chromatography 1. think about what happens when you spil

Question

Organic chemistry
Topic
chromatography
1. think about what happens when you spill red wine on a table of cloth. where does the colored compound start and where does some of it ends? you try to wash it out quickly with water, and it only helps a little, then you try rubbing alcohol (70% of aqueous isopropanol) and it does wash out completely, albeit not easily. Describe what happens to the colored compounds as they are slowly washed out. (Make sure your answers sound like those of a chemist, not a laundry maid)
2. think about dying cloth-maybe you have done tie-dying before. Describe where the color starts and where some of it ends up. ( again, give answers like a chemist)
3. The basic food colors are red,blue,green and yellow. Think about what you know about colors and predict which of these might be single colored compounds and which ones might contain more than one. write down your predictions. if you have the colors listed and want a purple color, what would you do?
please help me answer this question

Explanation / Answer

1. Spilled red wine is washed off completely with alcohol after several tries. The red color which comes from the organic compounds in wine is soluble in less polar solvent such as iso-propylalcohol and is not every soluble in polar solvent as water. The compound gets partitioned in alcohol with every wash and thus is removed completely from the cloth.

2. In dying the cloth, the color compound dissolved in the solution in which the cloth is to be died is partitioned between the surface of the cloth (fabric) and the solution. With one dye cycle we get a certian shade of color as only some compound has been partitioned. As the dying cycle increases the color also gets darker due to more compound getting partitioned in the fabric from the solution.

3. Red, yellow and blue are thee basic primary single colors. Whereas, green is a mix of blue and yellow color. For purple color we mix red and blue. Green, orange and purple are secondary colors formed by mixing primary basic colors. The rest colors are tertiary colors formed by mixing primary basic and secondary colors.

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.