Winnie Ndwai
more than 1 week ago
Explain the preparation of hydrogen sulphide?
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more than 1 week ago
Hydrogen sulfide (H2S) can be prepared by reacting a metal sulfide with a strong acid. One common method is to react iron sulfide (FeS) with hydrochloric acid (HCl) according to the following equation:
FeS + 2HCl -> FeCl2 + H2S
To prepare hydrogen sulfide using this method, the following steps can be followed:
1. Add a small amount of iron sulfide (FeS) to a flask or test tube.
2. Carefully add hydrochloric acid (HCl) to the flask containing the iron sulfide. The reaction will produce hydrogen sulfide gas, which will be released from the solution.
3. Collect the hydrogen sulfide gas by placing a collection vessel, such as a test tube or gas syringe, over the mouth of the flask to capture the gas.
4. The hydrogen sulfide gas can be identified by its characteristic rotten egg smell.
It is important to note that hydrogen sulfide is a toxic and flammable gas, so proper precautions should be taken when handling and working with it. Additionally, the reaction should be carried out in a well-ventilated area to prevent the buildup of the gas.
FeS + 2HCl -> FeCl2 + H2S
To prepare hydrogen sulfide using this method, the following steps can be followed:
1. Add a small amount of iron sulfide (FeS) to a flask or test tube.
2. Carefully add hydrochloric acid (HCl) to the flask containing the iron sulfide. The reaction will produce hydrogen sulfide gas, which will be released from the solution.
3. Collect the hydrogen sulfide gas by placing a collection vessel, such as a test tube or gas syringe, over the mouth of the flask to capture the gas.
4. The hydrogen sulfide gas can be identified by its characteristic rotten egg smell.
It is important to note that hydrogen sulfide is a toxic and flammable gas, so proper precautions should be taken when handling and working with it. Additionally, the reaction should be carried out in a well-ventilated area to prevent the buildup of the gas.
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