Chemistry, 25.10.2019 01:43 sbhishop19
Ecdysone is an insect hormone that controls molting. in a polarimetric experiment, 70.00 mg of ecdysone was dissolved in 10.00 ml of chloroform, and the solution was placed in a 2.0 cm path-length cell. the optical rotation was measured at 20 °c using the yellow sodium d line near 589 nm wavelength. if the rotation observed was of +0.087°, calculate the 20davalue for ecdysone.
Answers: 3
![[\alpha ]_{D}^{20}](/tpl/images/0345/2650/58db3.png)
) for ecdysone using the following expression:![[\alpha ]_{D}^{20} =\frac{\alpha }{l \times c }](/tpl/images/0345/2650/0727d.png)
![[\alpha ]_{D}^{20} =\frac{\alpha }{l \times c }=\frac{0.087\textdegree }{0.20dm \times 7.000 \times 10^{-3}g/mL } =62 \textdegree .mL .dm^{-1}. g^{-1}](/tpl/images/0345/2650/2ce4f.png)
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Ecdysone is an insect hormone that controls molting. in a polarimetric experiment, 70.00 mg of ecdys...
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