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Classic chemistry experiments: the electrolysis of solutions

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Find out what happens when electricity passes through molten compounds… with water present

When electricity passes through molten compounds, like sodium chloride, the ions move towards the electrode of opposite charge. Sodium chloride gives sodium metal and chlorine gas. This experiment illustrates what happens when the system is made more complicated because water is present. Electricity is passed through various solutions and the products are identified.

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The electrolysis of solutions experiment, teacher handout
PDF, Size 46.66 kb
The electrolysis of solutions experiment, student handout
PDF, Size 56.36 kb

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Additional information

This practical is part of our Classic chemistry experiments collection.

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