how can i make saturated CuSO4.5H2O saturated solution.Please tell temperature also?
To make a saturated solution of CuSO4∙5H2O (copper(II) sulfate pentahydrate), follow these steps:
1. Start with solid CuSO4∙5H2O. This is commonly available as blue crystals.
2. Measure out a specific amount of CuSO4∙5H2O. This can be any desired amount, but for simplicity, let's say you want to make 100 mL of saturated solution.
3. Prepare a clean and dry container, such as a beaker or flask, to hold your solution.
4. Add the measured CuSO4∙5H2O to the container.
5. Add a small amount of distilled or deionized water to dissolve the copper sulfate pentahydrate. This will help to create a concentrated solution.
6. Begin stirring the mixture with a glass rod or magnetic stir bar to aid in dissolving the solid. Keep stirring until no more solid remains undissolved.
7. If necessary, add more water in small increments and continue stirring until you reach the desired volume, in this case, 100 mL.
8. At this point, you have a saturated solution of CuSO4∙5H2O. This means that the solution contains as much CuSO4∙5H2O as it can hold at a specific temperature.
Regarding the temperature, the solubility of CuSO4∙5H2O increases with higher temperature. The solubility of CuSO4∙5H2O in water is approximately:
- At 0°C: 31.6 g/100 mL
- At 20°C: 74.3 g/100 mL
- At 50°C: 121 g/100 mL
- At 100°C: 203 g/100 mL
So, to create a saturated solution, you can either heat the water to the desired temperature (if it's higher than room temperature) or wait for the solution to equilibrate at room temperature.
Remember that safety precautions should be followed when working with chemicals. Use appropriate protective equipment and handle the materials with care.