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Test confirming the migration of ions by means of indicatorpaper

Test confirming the migration of ions by means of indicatorpaper

Item no.: P7152100

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Principle

Strips of indicator paper soaked in potassium nitrate solution are spanned between two copper electrodes inside a ribbed trough. A drop of hydrochloric acid or sodium hydroxide is dripped onto the middle of these strips. When a voltage is applied, it can be seen how the ions migrate along the paper.

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p7152100e.pdf Experiment guide, English 310.47 KB

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