Answer:
Specific Rotation = 105º
S% in mixture = 92%
Explanation:
Specific rotation in organic compounds varies linearly, then the enantiomeric excess can be express as:
Where alpha is the specific rotation of the mixture and alpha pure is the specific rotation of the excess enantiomer.
Then, knowing that the S enantiomer is in excess you can calculate the specific rotation of that mixture:
For calculating the percentage of S you should remember that the enantiometric excess is the percentage of excess of a certain enantiomer, for example in this case:
Since S is in Excess
Also, it is true:
Then you can solve the system of linear equations, finding:
Hope it helps!
<h3><u>Answer;</u></h3>
Cannon-Bard theory
<h3><u>Explanation</u>;</h3>
- <em><u>The idea that an emotion-arousing stimulus is simultaneously routed to the cortex and to the sympathetic nervous system is central to the Cannon-Band theory.</u></em>
- Cannon-Bard theory states that we feel emotions and experience physiological reactions such as sweating, trembling, and muscle tension simultaneously.
- The theory argues that we experience physiological arousal and emotion at the same time. The theory gives more attention to the role of thought or outward behavior as compared to James-Lange.
The answer is A because water molecules don't have metallic bonding, and water is also polar, and it takes more time for the heat energy to break down the hydrogen bonds
Answer:
By designing new technology that would prove new information
Explanation:
The statement about "Carbon can bond with other carbon atoms to produce cyclic hydrocarbon structures" is true. <span>Carbon
can also bond with other four atoms because of its outer shell (valence shell)
that has four electrons. This is the reason why organic molecules can be so
large because of this bonding. </span>
