A reaction having a 92.7% yield may be considered a successful experiment. However, in the synthesis of complex molecules such as chlorophyll and many anticancer drugs, a chemist often has to carry out a multiple-step synthesis. What is the overall % yield for such a synthesis, assuming it is a 21-step reaction with a 92.7% yield at each step? Be sure your answer has the correct number of significant digits. % yield

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A: see below.

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".