论文部分内容阅读
初学化学的同学,常常对实验室制取氧气的操作及注意事项都存在着疑问.确实,寻找这些疑问的答案十分重要,它不仅有助于做好实验,而且对以后的学习及动手操作均具有指导意义.下面就实验室制氧操作中的一些常见问题予以解答,希望能对大家有所帮助.1.实验室制氧需要哪些仪器?答:需要的仪器有:大试管、铁架台、导气管(附带橡皮塞)、酒精灯、集气瓶、水槽、药匙
Beginner chemistry classmates often have doubts about the operation of laboratory oxygen preparation and precautions.Really finding the answers to these questions is very important, it not only helps to do the experiment, but also for future learning and hands-on operation are The following oxygen laboratory operation of some of the common questions to be answered, I hope we can help .1 oxygen laboratory laboratory equipment needed? A: The instruments needed are: a large test tube, iron stand, Airway (with rubber stopper), alcohol lamp, gas cylinder, sink, medicine spoon