Difference between liquid HCl and a solution of HCl

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SUMMARY

Hydrochloric acid (HCl) is a compound consisting of one hydrogen atom and one chlorine atom, forming a polar covalent bond. HCl exists as a gas at room temperature and is classified as an acid when dissolved in water, where it dissociates to produce H+ ions. The key distinction between liquid HCl and an aqueous solution of HCl lies in the state and concentration; liquid HCl requires high pressure to maintain its form, while the aqueous solution contains hydrated protons from the dissociation of HCl gas in water.

PREREQUISITES
  • Understanding of polar covalent bonds
  • Knowledge of acid-base chemistry
  • Familiarity with the concept of ionization in solutions
  • Basic principles of gas behavior under pressure
NEXT STEPS
  • Research the properties of polar covalent compounds
  • Study the process of ionization in aqueous solutions
  • Explore the behavior of gases under varying pressure conditions
  • Learn about the applications and safety measures for handling liquid HCl
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Chemistry students, laboratory technicians, and professionals working with acids and chemical solutions will benefit from this discussion.

donaldparida
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I know that HCl is a compound whose 1 molecule is composed of 1 hydrogen and 1 chlorine atom bonded co-valently to each other, the bond being polar co-valent. It exists in gaseous state at room temperature. When HCl gas is dissolved in water, it dissociates to furnish H+ ions and thus HCl qualifies the definition of an acid.

My question is:When is HCl known as an acid? When it is in the gaseous state or when it is dissolved in water to give an aqueous solution? Also what is the difference between an aqueous solution of HCl gas and liquid HCl?Is liquid HCl also an acid?
 
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Both. The gas ionizes in water giving protons. The solution in water carries dissolved or hydrated protons.
LIQUID HCl, would have to be kept under some high pressure.
 

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