Preparing a Saturated Solution of Sodium Chloride in Water at 25°C




Gather Materials:
- Sodium chloride (table salt)
- Distilled water
- Stirring rod
- Beaker
- Thermometer




Weighing the Sodium Chloride:
1. Begin by weighing out a specific amount of sodium chloride. The amount will depend on the desired concentration of the solution.




Dissolving Sodium Chloride:
1. Add the weighed sodium chloride to a clean, dry beaker.
2. Gradually add distilled water to the beaker while stirring continuously with a stirring rod.
3. Continue adding water and stirring until no more salt dissolves. This indicates that the solution is saturated.




Checking the Temperature:
1. Use a thermometer to check the temperature of the solution. Ensure it is at 25°C for accuracy.




Filtering (optional):
1. If there are any undissolved particles in the solution, filter it through filter paper to obtain a clear saturated solution.




Final Steps:
1. Once the solution is saturated and at 25°C, it is ready for use.
2. Label the container with the concentration of the solution and the date it was prepared.




By following these steps, you can successfully prepare a saturated solution of sodium chloride in water at 25°C.