学生実験：濃塩酸の希釈操作(Student Experiment: Concentrated Hydrochloric Acid Dilution Manipulation)

Pour 100 mL of concentrated hydrochloric acid into 100 mL of water and mix.
Operate in a draft.
The marker alignment of the Messzylinder is only seen from a distance.
Normally, concentrated hydrochloric acid is added to the water in the beaker and transferred to the reagent bottle after the temperature has cooled to room temperature.
The water and hydrochloric acid are mixed in the reagent bottle to avoid the risk of transporting a beaker containing 6 mol/L hydrochloric acid.
The reagent bottle is covered with plastic wrap and the lid of the reagent bottle is placed on the reagent bottle after the temperature of the liquid has cooled.

by Ooki Atsushi
https://repun-app.fish.hokudai.ac.jp/course/index.php?categoryid=15

---------------------------------------------------------------------------------------------------------------------------------------------------------------

水100mLに濃塩酸100mLを注いで混ぜます。
ドラフト内で操作します。
メスシリンダーの標線合わせは遠目で見るだけ。
通常は、ビーカー内の水に濃塩酸を加え、室温まで温度が下がってから試薬瓶に移します。
6 mol/Lの塩酸入りのビーカーを運搬するリスクを考えて、試薬瓶で水と塩酸を混ぜています。
試薬瓶にはラップをして、液体の温度が下がってから、試薬瓶の蓋をします。

by Ooki Atsushi
https://repun-app.fish.hokudai.ac.jp/course/index.php?categoryid=15