ame ed 312 EXPERIMENT 21 Petry of Super ANALYSIS C. Determination of Optical Activities for Glucose, Fructose and Sucros

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Ame Ed 312 Experiment 21 Petry Of Super Analysis C Determination Of Optical Activities For Glucose Fructose And Sucros 1 (41.18 KiB) Viewed 44 times

ame ed 312 EXPERIMENT 21 Petry of Super ANALYSIS C. Determination of Optical Activities for Glucose, Fructose and Sucrose Copy the optical activities from your Datasheet into the table below: ANALYSIS Glucose Fructose Optical Activity A (enter for each sugar) +52.7 -92.4 Sucrose +66.37 D. The Composition of Sucrose Use Equation (21-2) to predict the optical rotation of a pure sucrose solution at the concentration of sucrose you prepared in the acid (from the left-hand table above) Predicted optical rotation for pure sucrose at this concentration Use Equation (21-3) to predict the optical rotation of the glucose/fructose mixture you prepared (right-hand table above). Predicted Optical Rotation: Assume that the sucrose decomposed into glucose and fructose in the acid solution. Use Equation (21-2) to predict the value of the optical rotation of the solution. Hint: In a 20.0 g sample of sucrose, half of the mass is glucose and half of the mess is fructose. Predicted Optical Rotation: