Lab Experiment: Dilution of Copper (II) Sulfate solution
Aim: To prepare 100 mL of diluted copper (II) sulfate solution from a 1M stock solution
Materials needed:
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1M CuSO4 solution (stock)
Distilled water
Glass pipette
Pipette bulb
100mL volumetric flask
Safety goggles and gloves
Safety precautions
Wear safety goggles and gloves
Handle copper sulfate with care – it can be harmful of ingested or in contact with skin
Procedure:
1. Calculate the volume of solution needed:
Use the dilution formula
C1V1 = C2V2
2. Using the pipette and bulb, carefully draw calculated volume of the 1M CuSO 4
solution.
3. Transfer the required volume of stock solution into the 100 mL volumetric flask
4. Add distilled water slowly to the flask until the bottom of the meniscus reaches
the 100mL mark
5. Stopper the flask and invert it gently several times to mix solution thoroughly.
6. Label prepared solution by writing its concentration and name of compound.