what changes in colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate for about 30 minutes
If this is an experiment you were supposed to do, write down what you observed.
Had you done the experiment, you might have gotten a result similar to
http://library.thinkquest.org/18406/sdlab.htm
To observe the changes in the color of iron nails and copper sulphate solution after 30 minutes, you would need to perform an experiment. Here's how you can do it:
Materials needed:
1. Iron nails
2. Copper sulphate solution (available at a chemical supply store)
3. Containers or beakers
4. Timer
Procedure:
1. Fill a container or beaker with copper sulphate solution.
2. Place the iron nail in the copper sulphate solution, making sure it is completely submerged.
3. Start the timer and leave the iron nail in the solution for 30 minutes.
4. Observe the changes in color during and after the 30-minute period. Be sure to record your observations.
Expected observations:
During the 30 minutes, you might observe changes in the color of both the iron nail and the copper sulphate solution.
1. Iron nail: Initially, the iron nail will have its normal metallic appearance, usually silver-gray, when placed in the copper sulphate solution. Over time, you should notice the iron nail starting to change in color. It will turn brownish-red or orange due to a chemical reaction that occurs between the iron and the copper in the copper sulphate solution.
2. Copper sulphate solution: Initially, the copper sulphate solution is usually blue in color. As the iron nail reacts with the copper sulphate, you might observe that the blue color of the solution starts to fade or change. It might turn greenish or even become cloudy. This indicates that the copper in the copper sulphate is being displaced by the iron from the nail, resulting in a chemical change.
Remember, the reaction between the iron and copper sulphate is an example of a redox reaction, where the iron is being oxidized and the copper in the solution is being reduced.