搜索 - 科创

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70（40~120）mg/L 由于是普通酸性镀铜，就没有光亮剂了，而且相信绝大多数人不容易买到少量的平时用量不大，这次只配了100mL 称量出20g五水硫酸铜

），硫酸在水中的电离第一步是完全的：H2SO4 = H+ + HSO4-但硫酸氢根离子HSO4-的电离并不完全（K≈0.01），溶液中存在较高浓度的HSO4-，通电后带负电的HSO4-很容易移向阳极，在阳极上就可能发生副反应

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