Reaction of Metal salt with Sulphuric acid

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Discussion Overview

The discussion revolves around the reaction of metal salts, specifically sodium chloride (NaCl), with sulfuric acid (H2SO4). Participants explore the concept of volatility in relation to this reaction, questioning the implications of sulfuric acid's properties and the conditions under which the reaction occurs. The scope includes theoretical aspects and chemical reasoning.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants question the relevance of volatility in the reaction between sulfuric acid and metal salts like NaCl, wondering if it should be accepted as a fact.
  • There is a request to label the states of reactants and products at standard conditions, indicating a focus on clarity in chemical representation.
  • Participants note that NaCl is solid and sulfuric acid is liquid, prompting further inquiry into the states of the products.
  • One participant mentions that the reaction is not necessarily in aqueous solution, suggesting alternative contexts for the reaction.
  • Another participant asserts that sulfuric acid is non-volatile and does not evolve with HCl gas, proposing that other acids could be used but sulfuric acid is preferred for obtaining pure HCl.
  • There is a discussion about the purity of HCl gas, with a participant questioning the definition of "pure" in this context.

Areas of Agreement / Disagreement

Participants express differing views on the role of volatility in the reaction and the conditions under which it occurs. There is no consensus on the implications of these factors or the characterization of the products.

Contextual Notes

Some participants mention the solubility of sodium sulfate and the ionization of the reactants in water, indicating potential limitations in understanding the reaction's context. The discussion also highlights the ambiguity regarding the conditions of the reaction, such as whether it occurs in aqueous solution.

Who May Find This Useful

This discussion may be of interest to students and educators in chemistry, particularly those exploring acid-base reactions and the properties of chemical substances.

Titan97
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Its given in my book that Sulphuric acid displaces more volatile acid from Metal salts like NaCl.
That is, NaCl + H2SO4→ HCl + Na2SO4
What does valtility have to do with such reactions?
Or Should I just accept it as a fact?
 
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Label reactants and products with their states/phases at standard conditions.
 
NaCl is solid, Sulphuric acid is liquid?
 
And products?
 
Titan97 said:
Its given in my book that Sulphuric acid displaces more volatile acid from Metal salts like NaCl.
That is, NaCl + H2SO4→ HCl + Na2SO4
What does valtility have to do with such reactions?
Or Should I just accept it as a fact?
NaCl is fairly soluble in water, and sulfuric acid is very soluble in water, and both are very much ionized when dissolved in water. You have a solution of ions. (I really should check on the solubility of sodium sulfate just to be more thorough and correct in my comment).
 
As written, reaction is not necessarily in aqueous solution.
Edit: see Sharks and Little Fish, Wolfgang Ott, and/or Das Boot for the aqueous case (chlorine evolution).
 
Sulphuric acid is not volatile hence it does not come out with HCl gas. Other acids can be used as well. But nonvolatile acide like sulphuric acid is preferred to get pure HCI. Am I correct?
 
Titan97 said:
hence it does not come out with HCl gas
Yes. "Pure?" Depends.
 
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