Precipitation Reaction: K2SO4 + Ba(NO3)2

In summary, a precipitation reaction is a type of chemical reaction where two aqueous solutions react to form an insoluble solid, called a precipitate. The reactants in this reaction are potassium sulfate (K2SO4) and barium nitrate (Ba(NO3)2). The chemical equation for this reaction is K2SO4 + Ba(NO3)2 → BaSO4 + 2KNO3, and the purpose is to form the insoluble barium sulfate (BaSO4) precipitate. The outcome of a precipitation reaction can be affected by factors such as temperature, concentration, pH, and impurities.
  • #1
Soaring Crane
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The mixing of which pair of reactants will form in a precipitation reaction?

1) HCl + Ca(OH)2
2) K2SO4 + Ba(NO3)2
3) NaNO3 + NH4
4) CsI + NaOH

It is 2 because BaSO4 is insoluble?
 
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  • #2
Yes, BaSO4 is insoluble which means it is a precipitate
 
  • #3
This is correct. When K2SO4 and Ba(NO3)2 are mixed, a precipitation reaction will occur and form the insoluble compound BaSO4. This reaction is known as a double replacement reaction, where the cations (K+ and Ba2+) switch partners to form new compounds. The products of this reaction will be KNO3 and BaSO4.
 

What is a precipitation reaction?

A precipitation reaction is a type of chemical reaction where two aqueous solutions react to form an insoluble solid, called a precipitate. This reaction occurs when the product of the reaction is less soluble than the reactants, causing it to separate from the solution.

What are the reactants in the precipitation reaction between K2SO4 and Ba(NO3)2?

The reactants in this precipitation reaction are potassium sulfate (K2SO4) and barium nitrate (Ba(NO3)2).

What is the chemical equation for the precipitation reaction between K2SO4 and Ba(NO3)2?

The chemical equation for this precipitation reaction is K2SO4 + Ba(NO3)2 → BaSO4 + 2KNO3, where BaSO4 is the insoluble precipitate.

What is the purpose of this precipitation reaction?

The purpose of this precipitation reaction is to form the insoluble barium sulfate (BaSO4) precipitate. This reaction is commonly used in analytical chemistry to identify and separate different ions in a solution.

What factors can affect the outcome of a precipitation reaction?

There are several factors that can affect the outcome of a precipitation reaction, including temperature, concentration of the reactants, and pH of the solution. Other factors such as the presence of impurities or the order of mixing the reactants can also influence the reaction.

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