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:
24 hours
Explanation:
Bacterial pink eye is highly contagious and is typically treated with antibiotic eye drops. It can spread to others as soon as symptoms appear, and it remains contagious for as long as symptoms remain, or for about 24 hours after starting a course of antibiotics.
Answer: Different types of drugs affect your body in different ways, and the effects associated with drugs can vary from person to person. How a drug effects an individual is dependent on a variety of factors including body size, general health, the amount and strength of the drug, and whether any other drugs are in the system at the same time. It is important to remember that illegal drugs are not controlled substances, and therefore the quality and strength may differ from one batch to another
Explanation:
Valves are like flaps or lids that are used to transport blood from the atria to the ventricles. They act as inlets and outlets of blood.
Explanation:
The atrioventricular valves are located Left and right that are in the middle of atria and ventricle on both sides of the heart while two semilunar valves separate the right and left ventricles from the pulmonary valve and aortic valve.
The Atrioventricular valves are the mitral valve and the tricuspid valve. Mitral valve is in the left side and tricuspid valve is in the right. they both are separated by the atrium and ventricle
The two semilunar valves are the pulmonary valve and aortic valve. the pulmonary valve is on the right side separated by the right ventricle and pulmonary artery. The aortic valve is on the left and is separated by the left ventricle and aorta.
