Carbohydrates
Carbohydrates are the organic compounds that are obtained in foods and living matters in the shape of sugars, cellulose, and starch. The general formula of carbohydrates is Cn(H2O)2. The ratio of H and O present in carbohydrates is identical to water.
Starch
Starch is a polysaccharide carbohydrate that belongs to the category of polysaccharide carbohydrates.
Mutarotation
The rotation of a particular structure of the chiral compound because of the epimerization is called mutarotation. It is the repercussion of the ring chain tautomerism. In terms of glucose, this can be defined as the modification in the equilibrium of the α- and β- glucose anomers upon its dissolution in the solvent water. This process is usually seen in the chemistry of carbohydrates.
L Sugar
A chemical compound that is represented with a molecular formula C6H12O6 is called L-(-) sugar. At the carbon’s 5th position, the hydroxyl group is placed to the compound’s left and therefore the sugar is represented as L(-)-sugar. It is capable of rotating the polarized light’s plane in the direction anticlockwise. L isomers are one of the 2 isomers formed by the configurational stereochemistry of the carbohydrates.
![Chemistry
Potassium chromate forms a bright yellow solution when dissolved in water. Potassium dichromate
forms an orange solution when dissolved in water. One way to make the dichromate ion is to add
acid to a chromate salt according to the following equation:
2 Cro?- (aq) + 2 H,0* (aq)= Cr,03- (aq) + 3 H20 (1)
When a student adds 2 drops of nitric acid to the yellow potassium chromate solution, the solution
turns an orange color. The student then adds 2 drops of sodium hydroxide and the solution turns
yellow. The student then adds 2 drops of sulfuric acid to the solution and it turns orange. The
student then adds 4 drops of sodium hydroxide and the solutions turns back to the original yellow
color.
1. Why did both the addition of nitric acid and sulfuric acid change the solution to an orange
color?
2. Why did the addition of sodium hydroxide change the solution back to a yellow color?
3. Why did it take more sodium hydroxide after the addition of sulfuric acid than nitric acid?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1bbf089d-71bd-4ac6-a620-da95e8106bdc%2F10e4a98d-1d04-4be1-b3b9-f60cc6a62bc2%2Fjuan4s_processed.jpeg&w=3840&q=75)
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