1.上机实验前必须认真阅读整个实验内容,并认真学习配套教材上的相关知识。 2.上机实验后,请完成实验步骤部分的填空 3.完成回答问题部分的所有问题。 4.上机完成修改程序部分的操作

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Overview: As you may discover, growing single crystals takes patience as well as an artful hand Crystallizations can be very sensitive to temperature and minor disturbances. Therefore, you will be encouraged to try several different temperatures using otherwise identical conditions, and to always find a quiet undisturbed location to promote crystal growth. Here are some tried and true tips to get

Thin Layer Chromatography (TlC) is an extremely useful technique for monitorin reactions. It is also used to determine the proper solvent system for performing separations using column chromatography. tLC uses a stationary phase, usually alumina or silica, that is highly polar(standard) or non-polar(reverse phase). The mobile phase is a solvent whose polarity you will choose. In 5.301, and in most lab

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一、完全真值表法的判定功用 二、归谬赋值法的操作与判定 三、命题演算证明方法的应用与构造

通过本章的学习,掌握调查研究、新闻 传播、举办活动、处理危机等公共关系实 务的操作要点和方法,提高公共关系的实 际工作能力

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Chemists use spectroscopy (Ir, UV-Vis, NMR) to determine molecular structure. spectroscopy: technique that measures the amount of radiation a substance absorbs at various wavelengths(based on the quantization of molecular energy levels Molecules exist in quantized energy states (rotational, vibrational, and electronic quantum states) Molecules absorb discrete amounts of energy(ae)and are excited to higher