Use a measuring cylinder to add 40 cm3 of sulfuric acid in a beaker, Gently heat the beaker for a couple of minutes, Carefully add a spatula of copper oxide powder to the beaker , Stir the solution with a glass rod., Keeping adding more copper oxide powder until it no longer disappears., Filter the mixture to remove the excess copper oxide, then pour the filtrate (the copper sulfate solution) into an evaporating basin, Place the evaporating basin above a water bath, and heat the copper sulfate solution to evaporate off half of the water, Leave on the windowsill so that all of the water evaporates,

Making Salts method

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