What are the products and reactions of KNO3+NaOH+MgSO4+H2O in one container?

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Discussion Overview

The discussion revolves around the chemical reactions and products formed when mixing potassium nitrate (KNO3), sodium hydroxide (NaOH), magnesium sulfate (MgSO4), and water (H2O) in a single container. Participants explore the nature of the gas being released and the solid substance observed at the bottom of the container, considering the implications of acid-base reactions and potential precipitates.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant observes small bubbles and questions the identity of the gas released, as well as the cloudy solid substance at the bottom, speculating it might be a hydroxide compound.
  • Another participant suggests that the reaction involves an acid-base interaction, identifying sulfate ions as an acid and hydroxide ions from NaOH as a strong base, but does not clarify the specific products.
  • A later reply challenges the characterization of sulfate ions, arguing that they are conjugate bases and will not react with hydroxide ions, instead suggesting they may react with water.
  • Participants are encouraged to consider the dissociation of the compounds and to think about which ions might combine to form a precipitate.

Areas of Agreement / Disagreement

Participants express differing views on the nature of the reactions occurring, particularly regarding the roles of sulfate ions and hydroxide ions. There is no consensus on the identity of the gas released or the solid formed.

Contextual Notes

Participants have not fully resolved the assumptions regarding the reactions and the specific identities of the products formed. The discussion includes some uncertainty about the definitions and roles of the ions involved.

hediki
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hey ok i have KNO3+NaOH+MgSO4+H2O in one container now i see so very small bubbles, what is the gas being released? and the is this cloudy some what solid substance at the bottom what can that be? is it a hydroxide compund?
 
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some one please
 
1: Don't double post.
2: This is, as I hope you know, an acid reaction (not sure of the right words in english). {SO_4}^{++} is an acid, OH^- (which appears when dissolving NaOH) is a very strong base. They will obviously react. Think again, and maybe you'll find it.
 
1 i didnt double post they moved it...
2 u didnt answer y question
 
nazgjunk said:
1: Don't double post.
2: This is, as I hope you know, an acid reaction (not sure of the right words in english). {SO_4}^{++} is an acid, OH^- (which appears when dissolving NaOH) is a very strong base. They will obviously react. Think again, and maybe you'll find it.

What is SO4++? I think you meant SO42-, which is a conjugate base and not an acid. SO42- will NOT react with OH- because both want to accept a hydrogen ion. It WILL react with H2O, however.

First, I'd start out by writing out the ions dissociated. KNO3 is soluble, NaOH is a strong base so it will dissociate, and MgSO4 is soluble in water. Then think which two ions will go together to form a precipitate.

Then think about what will happen when the SO42- reacts with H2O. Let's see what you can come up with :smile:.
 

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