Describe how you would prepare 500 ml of a solution that is 40% bleach solution by volume.
To prepare 500 ml of a 40% bleach solution by volume, you will need to follow these steps:
1. Determine the amount of bleach needed: In a 500 ml solution, 40% of the volume needs to be bleach. This means that you will require 40% of 500 ml, which is (40/100) * 500 ml = 200 ml of bleach.
2. Calculate the amount of solvent (water) needed: Since the bleach solution is 40% bleach and 60% water (the solvent), you will need to subtract the amount of bleach from the total volume to find out how much water is needed. Thus, the volume of water required will be 500 ml - 200 ml = 300 ml.
3. Measure the bleach: Using a graduated cylinder or another suitable measuring device, pour 200 ml of bleach into a container.
4. Add water to the bleach: Measure 300 ml of water and slowly pour it into the container with the bleach.
5. Mix thoroughly: Use a stirrer or shake the container gently to ensure that the bleach and water are thoroughly mixed.
After following these steps, you will have successfully prepared a 500 ml solution that is 40% bleach by volume. Always remember to handle bleach with caution and follow safety guidelines.