The observed rotation of a solution of 1.3 g of a compound in 10 mL of water is 11 degrees. If the pathlength is 10 cm, what is the specific rotation of the compound

Respuesta :

Answer:

The specific rotation of the compound is +84.6°.

     

Explanation:

The specific rotation of the compound can be found using the following equation:

[tex] [\alpha] = \frac{\alpha}{c*l} [/tex]

Where:

α: is the observed rotation of a solution = +11°

c: is the concentration

l: is the pathlength = 10 cm = 1.0 dm        

[tex] [\alpha] = \frac{\alpha}{c*l} = \frac{+11}{\frac{1.3 g}{10 mL}*1.0 dm} = +84.6 ^{\circ} [/tex]            

Therefore, the specific rotation of the compound is +84.6°

I hope it helps you!