- Pour the mixture of copper sulfate solution and chalk into a beaker or large container.

- Stir the mixture thoroughly to ensure it is well combined.

Step 2: Filtration

- Set up a filtration apparatus consisting of a funnel, filter paper, and a receiving container (such as a beaker or flask).

- Place the filter paper inside the funnel and wet it with some distilled water to help it adhere to the funnel.

- Slowly pour the mixture containing the copper sulfate solution and chalk onto the filter paper.

Step 3: Collection of Chalk

- The filter paper will trap the chalk particles, while the copper sulfate solution will pass through and be collected in the receiving container.

- Rinse the beaker and funnel with a small amount of distilled water to ensure that all the chalk particles are collected on the filter paper.

- The chalk particles will remain on the filter paper as a solid residue.

Step 4: Drying the Chalk

- Transfer the filter paper containing the chalk residue to a clean, dry surface or a watch glass.

- Allow the filter paper and the chalk residue to dry completely at room temperature.

- Once dry, carefully peel the filter paper away from the chalk.

- The separated chalk can now be collected as a dry, solid powder.

Step 5: Final Check

- To confirm that the chalk has been successfully separated, you can perform a simple test.

- Add a few drops of hydrochloric acid (HCl) to a small sample of the separated chalk.

- If it effervesces (produces bubbles), it indicates the presence of calcium carbonate (CaCO3), which is the main component of chalk.

- If no effervescence occurs, it might be necessary to repeat the filtration process to ensure complete separation.