please help with this homework question! an optically active compound has an r configuration with an absolute rotation of dextral rotary 200 degrees under standard conditions. A sample prepared in the lab is found to have a rotation of dextral rotary 120 degrees under standard rotations. it can be deduced that the compound prepared is what percentage of the rectus enantiomer?

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

24

answeridentity;

i believe the answer is 5,000