2. Place crystallizing dish inside pumpkin. 3. Use the same amount of soap and KI solutions, but only 75 mL of H2O2solution. 4. If presenting solutions 2 and 3 in cylinders, place cylinders inside ...

Scoop a small amount of KI into the water directly opposite the Pb(NO3)2 A precipitate of PbI2 will form near the center of the dish.