What is Hydroiodic Acid and How is it Used?
It is also known as hydrogen iodide with chemical formula HI. The molecular mass is 127.91g/mol. It is formed when hydrogen iodide dissolves in water. Due to high stability it is one of the strongest of all halide acid . It completely dissociate in water so it is a Strong acid. It react with metal & bases to form iodide salt. It is a colourless liquid with pungent odour. It is strongly react with bases .Sometime it is soluble in water & sometime it may not. Inhaling Hydroiodic acid can irritate the nose & throat. When hydroiodic acid react with base like sodium hydroxide it produce sodium iodide & water
Uses :
1) disinfectant
2) reagent
3) iodine salts
4) row material for pharmaceuticals.
FAQ
i) What are the health hazards issues regarding hydrogen iodide?
Ans: It is corrosive in nature and may burn the skin and causes irritation in eyes.
ii) Give a reaction with nitric acid HI.
Ans: 2HNO3 + 6HI → 2NO + 3I2 + 4H2O
iii) What happens when hydrogen iodide reacts with a strong base like sodium hydroxide?
Ans: It forms iodide salt i.e sodium iodide and water.
iv) Does HI is a strong or weak acid?
Ans: It is a strong acid as it completely dissociates into ions.
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