The two most abundant pigments in the chromatography results were carotene and Xanthophyll. What colors are absorbed  or reflected by various pigments and how much is there?

A scientist synthesized an unknown compound. It is soluble in sulfuric acid but not water. They then took a proton NMR using deuterated chloroform. The results are shown below. Identify the unknown compound using the data provided. Bonus: What is the IUPAC name of this compound?

What is the pH of bleach?

When oxygen is exhausted in a milk sample, what color is the methylene blue indicator?

What chemical reaction causes the color change of diphenylamine sulfonate indicator?

All questions please.     1) What are the pigments and their applications: 2) What is the difference between lightfastness and permanence of pigments?3) Explain the tinting strength of pigments and its relation with the size of the particle.4) Explain the opacity of pigments and its relation with the size of the particle. 5) What are the 4 ingredients for paints and explain each in one sentence.       1) a) Draw a human eye in the space below (LARGE!), and clearly label each of the partslisted below. Iris aqueous humor ciliary muscles RetinaPupil Cornea vitreous humor FoveaSclera lens choroid optic Optic   b) In your diagram of the human eye, label all instances of refractions that happen fromwhen light first enters the eye to when it is absorbed by the retina.     2) Name 4 popular vision problem and explain each briefly.   3) a) Draw a schematic representation of a cone and a rod photoreceptors in the space below(LARGE!), and clearly label each of the parts listed at…

Which dye will not kill microorganisms if a wet preparation is made? Why?

Based on the color of the pigments on the chromatography paper, explain which wavelengths of lights are absorbed and reflected by chlorophyll a, chlorophyll b, xanthophyll, and beta carotene

For each stain, indicate if it’s a cationic dye or an anionic dye (2 pts).             Stain Cationic or Anionic Dye malachite green   crystal violet   nigrosin   safranin

Dilute silver nitrate is sometimes applied to the eyes of newborn infants. Explain why a dilute solution is used rather than concentrated.