做好H2吹肥皂泡的实验，关键有两个：一是配制适当浓度的肥皂液；二是制取干燥而均匀的H2流。肥皂液的配制可将1克质量较好的肥皂或洗衣粉溶于30～40毫升蒸馏水中，充分溶和，在液体里不能有固体微粒，并注意肥皂液的浓度要适中，过浓过稀都不易成泡，然后在肥皂液里加2～3毫升 There are two keys to the experiment of H2 blowing soap bubbles: one is to prepare a suitable concentration of soap; the other is to make a dry and even H2 flow. Preparation of soap solution 1 gram of good soap or detergent can be dissolved in 30-40 ml of distilled water, fully dissolved in the liquid can not have solid particles, and pay attention to the concentration of soap liquid should be moderate, too thick too thin It is not easy to foam, then add 2 to 3 ml in the soap solution