What are the function of potassium hydro solution concentrated tetraoxosulphate (6) acid and heated iron filling in the preparation of nitrogen from air
This is a new one on me. I have idea what potassiu hydro solution is. Perhaps you meant to write potassium hydroxide. There is a process for obtaining N2 gas by iron (burning) Fe filings (note: not fillings) in sealed container of air in which the Fe is oxidized to Fe2O3. The O2 is removed but the N2 remaining is not pure N2. The remainder is N2, with impurities of Ar, and other gases such as Ar (about 1%). As for the role of KOH (if that is what you meant for potassium hydro solution) and H2SO4, I don't know other than as a way of introducing heat, However, using those as solutions intodudes H2O vaport into the sealed reaction vessel which in my opinion inroduces H2O vapor as a contaminant of the N2 in addtion to the other impurities. You might want to re-read and rephrase the question to make more sense.
The function of each component in the preparation of nitrogen from air using a concentrated tetraoxosulphate (VI) acid and heated iron filings are as follows:
1. Potassium hydroxide (KOH) solution: The KOH solution is used to absorb carbon dioxide (CO2) from the air. This is important because carbon dioxide can react with tetraoxosulphate (VI) acid and potentially generate undesirable byproducts.
2. Concentrated tetraoxosulphate (VI) acid: The concentrated tetraoxosulphate (VI) acid (also known as sulfuric acid, H2SO4) acts as a catalyst to facilitate the reaction between the nitrogen and oxygen in the air. It provides the necessary acidic environment for the reaction to occur.
3. Heated iron filings: The heated iron filings act as a reducing agent in this process. They react with the concentrated tetraoxosulphate (VI) acid to generate sulphur dioxide (SO2) gas, which is an important byproduct of this reaction. The iron filings also help in providing the necessary heat for the reaction to proceed.
Overall, the combination of potassium hydroxide solution, concentrated tetraoxosulphate (VI) acid, and heated iron filings creates a controlled environment that facilitates the conversion of nitrogen gas (N2) from the air into other useful compounds such as sulphur dioxide.
The function of potassium hydroxide (KOH) solution in the preparation of nitrogen from air is to absorb any carbon dioxide (CO2) that might be present in the air. This is necessary because carbon dioxide can interfere with the reaction that produces nitrogen.
To prepare nitrogen from air using potassium hydroxide solution, you need to set up a reaction vessel called a gas generator. The gas generator consists of a round-bottom flask connected to a delivery tube.
Here's how you can proceed with the preparation:
1. Start by adding a concentrated tetraoxosulphate (VI) acid (H2SO4) to the gas generator. This acid will act as a catalyst for the reaction.
2. Next, add the heated iron fillings to the gas generator. The heated iron fillings will react with the tetraoxosulphate (VI) acid, producing sulphur dioxide gas (SO2) and water (H2O). This reaction is exothermic, meaning it releases heat. The iron acts as a reducing agent, reducing the tetraoxosulphate (VI) acid into sulphur dioxide gas.
3. As the reaction proceeds, the sulphur dioxide gas will be carried over by the nitrogen gas produced from the air. The carbon dioxide (CO2) that might be present in the air will react with the potassium hydroxide (KOH) solution, forming potassium carbonate (K2CO3) and water (H2O). This prevents carbon dioxide from interfering with the nitrogen production.
4. The nitrogen gas, along with any excess air, will pass through the delivery tube and can be collected using appropriate collection methods.
It is worth noting that this method is just one of the ways to prepare nitrogen from air. Other methods, such as fractional distillation of liquid air, can be used as well.