Aim of the activity
To find which chemical reaction occurs between lead nitrate and potassium iodide solution.
Material used in the activity
- Lead nitrate solution
- Potassium iodide solution
- Test tubes
Procedure
We will take lead nitrate and potassium iodide solutions in test tubes. Now we add potassium iodide solution to lead nitrate and observe for a while.
Observation
When these solutions are mixed, a yellow colour precipitate of lead iodide is formed which is a solid insoluble substance and potassium nitrate remains as solution.
Chemical reaction involved in the activity
Pb (NO3)2 (aq) + 2KI (aq) → PbI2 (s) +2KNO3(s)
Explanation
In the activity , a double displacement occurs between lead nitrate and potassium iodide. There is a mutual exchange of ions between these two compounds.
As a result a solid insoluble substance lead iodide is formed. This called a precipitate and the reaction is called precipitation reaction.
Conclusion
This activity involves a double displacement reaction between lead nitrate and potassium iodide solutions.
Related Topics
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Topics |
| Activity 1.1 |
| Activity 1.2 |
| Activity 1.3 |
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| Activity 1.6 |
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| Activity 1.9 |
| Activity 1.10 |
| Activity 1.11 |