solve problem 43 please ur und placed in sample cell with a length of 1.00 dm, w

Question

solve problem 43 please

ur und placed in sample cell with a length of 1.00 dm, what observed rotation do you expect? 5.43 The specific rotation of L-alanine in water (at 25°C) is chemist prepared a mixture of L-alanine and its enantiomer, and 3.50 g of the mixture was dissolved in 10.0 mL of water. This solution was then placed in a sample cell with a pathlength of 10.0 cm and the observed rotation was +0.78. Calculate the % ee of the mixture. 2.8. A 5.44 For each of the following pairs of compounds, determine the relationship between the two compounds: HO

Explanation / Answer

ee % or optical purity % = 100 x observed rotation in mixture/ optical rotation of pure enantiomer = 100 x 0.78 / 2.8 = 27.86 %

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