Friday, September 2, 2016

Easy and simple chemistry experiment

This experiment is an example of decomposition and thus production of gas.



Required Apparatus _---------

1. A test tube
2. Potato pieces
3. Hydrogen peroxide liquid ( which is easily available in chemist shop and used as an antiseptic )

Procedure _--------

Take potato pieces in the test tube. Add little water to it. Now add hydrogen peroxide liquid to it. Soon we will observe lather coming up.


Reason ---------

When we are adding hydrogen peroxide liquid , it undergoes decomposition. Because of this, it gives oxygen and water as the byproducts. It is given by the equation ------
                                          ^
2H202 ------> 2H20 + 02 |


Where
H202 = hydrogen peroxide

H20 = water

02 = oxygen gas

As water is also the byproduct along with oxygen , we can observe the increase in water level in the test tube. The lather coming up is because of production of oxygen gas.

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