Answer: In a natural product synthesis, a chemist prepares

QUESTION:

In a natural product synthesis, a chemist prepares a complex biological molecule entirely from nonbiological starting materials. The target molecules are often known to have some promise as therapeutic agents, and the organic reactions that are developed Interpreting, Modeling & Estimating 3.166 While most isotopes of light elements such as oxygen and phosphorus contain relatively equal numbers of protons and neutrons, recent results indicate that a new class of isotopes called neutron-rich isotopes can be prepared. These neutron-rich isotopes push the limits of nuclear stability as the large number of neutrons approach the neutron drip line. They may play a critical role in the nuclear reactions of stars. An unusually heavy isotope of aluminum ( 43 13Al) has been reported. How many more neutrons does this atom contain compared to an average aluminum atom? 3.167 Without doing any detailed calculations, arrange the following substances in the increasing order of number of moles: 20.0 g Cl, 35.0 g Br, and 94.0 g I. 3.168 Without doing any detailed calculations, estimate which element has the highest percent composition by mass in each of the following compounds: (a) Hg(NO3)2 (b) NF3 (c) K2Cr2O7 (d) C2952H4664N812O832S8Fe4 along the way benefit all chemists. The overall synthesis, however, requires many steps, so it is important to have the best possible percent yields at each step. What is the overall percent yield for such a synthesis that has 24 steps with an 80 percent yield at each step?