Here's the balanced chemical equation for the reaction:
AgNO₃(aq) + KI(aq) → AgI(s) + KNO₃(aq)
Here's how to carry out the reaction:
1. Prepare Solutions:
* Dissolve silver nitrate (AgNO₃) in distilled water to create a dilute solution.
* Dissolve potassium iodide (KI) in distilled water to create a dilute solution.
2. Mixing the Solutions:
* Slowly add the potassium iodide solution to the silver nitrate solution while stirring constantly. This will ensure a more even reaction.
3. Observation:
* You will immediately observe the formation of a bright yellow precipitate, which is silver iodide (AgI). The precipitate will settle to the bottom of the container.
4. Filtration and Washing:
* Filter the mixture using a Buchner funnel and filter paper. The solid silver iodide will be retained on the filter paper.
* Wash the precipitate thoroughly with distilled water to remove any residual impurities.
5. Drying:
* Allow the silver iodide to air dry or dry it in an oven at a low temperature.
Important Safety Precautions:
* Wear appropriate safety gear: This includes gloves, goggles, and a lab coat to protect your skin and eyes from potential chemical contact.
* Work in a well-ventilated area: The reaction may produce fumes, so it's essential to work in a well-ventilated lab or outdoors.
* Dispose of waste properly: Dispose of the chemicals and waste according to your local regulations.
Tips for a Successful Reaction:
* Use dilute solutions: This helps to prevent the formation of large clumps of silver iodide, which can be difficult to filter.
* Stir continuously: This ensures that the reactants are evenly distributed and the reaction proceeds smoothly.
* Wash the precipitate thoroughly: This helps to remove any impurities that may be present.
Note: Silver iodide is sensitive to light and should be stored in a dark container to prevent decomposition.
