116. Solving a chemistry problem
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116. Solving a chemistry problem
Give a conclusion on the quality of cortisone acetate in terms of specific rotation (according to ND, [α] should be from +180° to +200°), if, during polarimetric determination, a 0.5% solution in acetone has the measured rotation angle α= +0 .9°. Thickness of the liquid layer l=10 cm.
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