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浓硫酸的稀释实验一旦操作不当,就会威胁实验人员的安全。我做了一套稀释浓硫酸实验的对比装置,让我们掌握正确稀释浓硫酸的方法。实验仪器及试剂广口瓶、三孔胶塞、胶头滴管、玻璃导管、青霉素小瓶、浓硫酸、水。实验仪器装置如图1所示。实验操作广口瓶中有A、B两个洁净的青霉素小瓶,A中盛有浓硫酸、B中盛有水,胶塞上对应的胶头滴管A中吸有水,B中吸有浓硫酸。实验开始,向A小瓶的浓硫酸中滴加水,可以看到滴加的水浮在液面上沸AB
Concentrated sulfuric acid dilution experiment once improper operation, it will threaten the safety of laboratory personnel. I made a comparison of dilute concentrated sulfuric acid experiment, let us master the correct dilution of concentrated sulfuric acid. Experimental equipment and reagents jar, three-hole rubber stopper, plastic dropper, glass tube, penicillin vial, concentrated sulfuric acid, water. Experimental equipment shown in Figure 1. Experimental operation There are A, B two clean penicillin vials in bottle, A is filled with concentrated sulfuric acid, B is filled with water, and the corresponding glue-dropper A in the rubber stopper absorbs water. sulfuric acid. At the beginning of the experiment, water was added dropwise to the concentrated sulfuric acid in a vial to see that the dripping water floated on the liquid surface. AB