Finding the formula of hydrated copper(II) sulfate

Hydrated copper sulfate crystals (blue in colour)

Source: © Shutterstock

In this experiment students will measure the mass of hydrated copper(II) sulfate before and after heating and use mole calculations to find the formula.

This is a class experiment suitable for students who already have a reasonable understanding of the mole concept. Given adequate access to top-pan balances, and skill in their use, students should be able to complete the experimental work in 30–40 minutes.

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