Answer: The required [a] for slotion will be -62.7
Explanation:
The specific rotation of pure quinine= -165
% of pure quinine= 69%
% of its enantiomer=ee=31%
Enantiomer excess =(ee)=excess of a single enantiomer/entire mixture×100
Now,
Excess of a single enantiomer=69% - 31%=38%
Entire mixture=69% + 31%= 100%
(ee)=38/100 × 100
=38%
Net rotation= 0.69-0.31=0.38
Hence, [a] for solution will be = -0.38×165= -62.7
Answer:
The left motor cortex
Explanation:
The cerebral cortex, also known as the neocortex, is the outer layer of neural tissue of the brain. The cerebral cortex is involved in diverse functions including perception, memory, thought, and voluntary physical activity. On the other hand, cerebral palsy (CP) refers to a group of disorders that alter the ability to move and maintain balance and posture. CP is caused by damage or abnormal development of the cerebral cortex (i.e., the part of the brain that directs muscle movement). CP can be divided depending on the type of disorder in motor skills into 1-spasticity (muscle tightness that makes movement), 2-dyskinesia (muscle imbalance), and 3-ataxia (muscle incoordination problems). People suffering from dyskinetic CP have problems controlling the movements of their hands and arms. The left motor cortex is known to control the movements of the right side of the body, while the right side of the motor cortex controls the movements of the left side of the body. In consequence, it is expected that a person with CP who has movement problems to control their right arm and hand is affected in the left motor cortex.
