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人教版高中化学第三册(试验修订本,选修)第93页有一道让学生设计的实验习题,原题内容是:“使用镁粉、盐酸、醋酸设计1个实验,证明在同温同压下,当上述2种酸的物质的量相同时,与镁粉反应生成氢气的体积也相同,但两者的反应速率不同。通过这个实验,能说明什么?”这是一个要求同步操作同时对比的实验,实验现象要同时发生,反应产生的气体体积要准确无误,
PEP High School Chemistry Book 3 (Experimental Revision, Elective) Page 93 There is an experimental exercise designed for students. The content of the original question is: “An experiment was designed using magnesium powder, hydrochloric acid, and acetic acid. With the same pressure, when the amount of the above two kinds of acids is the same, the volume of hydrogen reacted with the magnesium powder is the same, but the reaction rate of the two is different. Through this experiment, what can be explained?” This is a requirement to synchronize The simultaneous operation of the experiment, the experimental phenomenon must occur at the same time, the gas volume generated by the reaction must be accurate,