2％の硫化ナトリウム溶液はどう作るか？

2016-05-25View Original

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2％の硫化ナトリウム溶液はどう作るか？

Reply #22016-05-25

2％の硫化ナトリウムは質量比でしょう。硫化ナトリウム2グラムを水98ミリリットルに溶かせばいいはずです。そうだと思います！

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