28. Carbohydrates
Mutarotation
28. Carbohydrates Mutarotation
1PRACTICE PROBLEM
Glucose undergoes mutarotation in an aqueous solution. The specific rotation of pure α-D-glucose is +112.2° and pure β-D-glucose is +18.7°. When the pure α or β anomer is dissolved in water, it mutarotates and the specific rotation changes to +52.6°. Using the specific rotation values, calculate the percent of each anomer present in the solution at equilibrium.
Glucose undergoes mutarotation in an aqueous solution. The specific rotation of pure α-D-glucose is +112.2° and pure β-D-glucose is +18.7°. When the pure α or β anomer is dissolved in water, it mutarotates and the specific rotation changes to +52.6°. Using the specific rotation values, calculate the percent of each anomer present in the solution at equilibrium.