State how hydrogen chloride gas can be obtained from tetraoxosulphate (vi)
H2SO4(l) + 2NaCl(s) ==> 2HCl(g) + Na2SO4
DON'T TRY THIS ON YOUR OWN.
The general rule in making small quantities of an acid is to take a high boiling point acid, such as H2SO4, add a salt of the desired acid that has a lower boiling point, and distill the desired acid, WITH CAUTION. This is not for the faint of heart. Hot concentrated H2SO4 is not something to play with.
What is the name of the gas evolved from the mixture of sodium chloride and tetraoxosulphate(vi) acid
Hydrogen chloride gas (HCl) can be obtained from tetraoxosulphate (VI) (H2SO4) through a process known as a displacement reaction, specifically a neutralization reaction. Here's how you can obtain hydrogen chloride gas from tetraoxosulphate (VI):
1. Prepare the materials: For this reaction, you will need concentrated tetraoxosulphate (VI) (H2SO4) and a source of chloride ions, such as sodium chloride (NaCl).
2. Mix the reactants: In a reaction vessel, carefully add the concentrated tetraoxosulphate (VI) (H2SO4). Then, slowly add the sodium chloride (NaCl) to the reaction vessel containing the tetraoxosulphate (VI).
3. Observe the reaction: As the sodium chloride (NaCl) reacts with the tetraoxosulphate (VI) (H2SO4), a chemical reaction occurs. The hydrogen ion (H+) from the tetraoxosulphate (VI) gets displaced by the chloride ion (Cl-) from the sodium chloride. This displacement reaction results in the formation of hydrogen chloride gas (HCl).
H2SO4 + 2NaCl -> 2HCl + Na2SO4
4. Collect the hydrogen chloride gas: Hydrogen chloride gas (HCl) is colorless and has a strong, pungent odor. As it is produced in the reaction vessel, you can collect the gas by attaching a delivery tube to the reaction vessel and directing it into a suitable collection apparatus, such as a gas syringe or a gas burette.
5. Safety precautions: It's important to note that handling concentrated tetraoxosulphate (VI) (H2SO4) and hydrogen chloride gas (HCl) requires caution. These substances are corrosive and can cause severe burns, so it is essential to wear appropriate protective equipment, such as gloves and goggles, and work in a well-ventilated area.
Remember to always exercise caution and refer to proper safety protocols and guidelines when working with chemicals.