Expected Products
Lead Iodide
Insoluble- Used to detect high energy photons
- Previosly used as artist's pigment
Lead Nitrate, Potassium Iodide, Sodium Hydroxide, Silver Nitrate and Iron Chloride
A double displacement reaction is a chemical reaction in which the ions in two compounds switch to form two new compounds.
An insoluble salt is a compound that will not dissolve in water, and thus will likely be visible in an aqueous solution.
Observe double replacement reactions in which obvious chemical change occurred.
Predictions matched results. See equations.
After goggles donned, a drop from both solutions was dropped onto a clean, black circle on the laminate page, in the following order; Lead Nitrate and Potassium Iodide, Sodium Hydroxide and Iron Chloride, and finally, Silver Nitrate and Iron Chloride. Observations were recorded about the combined drops. The droppers that were used were then returned and the laminate page rinsed and dried.
The reaction resulted in a yellow solution containing a marbled precipitate that looked later more like opaque speckles
The reaction resulted in a cloudy brown-orange solution that contained brown flakes.
The reaction produced a white fuzzy solution that was not as cloudy as the other reaction products.
All three reactions recorded varying levels of cloudy solution, with either visible clumps or precipates formed. All three reactions resulted in a color change from colorless solutions to a vibrant yellow, a brown-orange, and an opaque white solution, indicating chemical change.
Visible chemical change was observed in all three reactions, proving that new compounds were formed, meeting the purpose of the lab.
