In a typical organic chemistry synthesis experiment, chemists use a variety of techniques to identify and purify their products. Most often, they will use TLC during the reaction, then they may run a column or extraction and/or recrystallize their product. Then, they use NMR, IR and Melting Point. Explain the purpose of each of these techniques in synthesizing a product. Summarize how each is used.
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Why do the strengths of london (dispersion) forces generally increase with increasing molecular size? choose one: a. heavier atoms have stronger attractions for each other than lighter atoms. b. dispersion forces are all equal in magnitude; there is no size dependence. c. dispersion forces arise from the attraction between the nuclei of atoms, and larger molecules have larger nuclei. d. dispersion forces arise from dipoles caused by the electron distribution being distorted. larger molecules have more electrons and, therefore, more distortions and a bigger force. e. dispersion forces depend on distance. larger molecules are farther apart and so the forces are smaller.
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The compound formed from 2 atoms of hydrogen and one atom of oxygen is
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Of the following elements, which is the least reactive? a. c b. h c. li d. he
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In a typical organic chemistry synthesis experiment, chemists use a variety of techniques to identif...
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