论文部分内容阅读
一、实验仪器及试剂实验仪器:硬质管、注射器、酒精灯、橡胶塞。实验试剂:氯气、细铜丝、蒸馏水。二、实验装置实验装置如附图所示。三、实验步骤1.按附图所示实验装置组装仪器并检查装置的气密性。检查方法:将注射器活塞推到底部,针头穿过橡胶塞插入硬质管,向外拉注射器活塞一段距离后松手,若活塞能回到原来位置则说明气密性良好,装置可用。
First, the experimental equipment and reagents Experimental equipment: hard tube, syringe, alcohol lamp, rubber stopper. Experimental reagents: chlorine, fine copper wire, distilled water. Second, the experimental device Experimental device as shown in the figure. Third, the experimental steps 1. According to the experimental apparatus shown in the figure assembly apparatus and check the airtightness of the device. Inspection method: Push the syringe piston to the bottom, insert the needle through the rubber stopper into the rigid tube, and pull the syringe piston outwards to release it. If the piston can return to the original position, the air tightness is good and the device is available.