13 Facts on HBr + Ag2CO3: What, How To Balance & FAQs

The chemical reaction is the rearrangement of molecules and ions of a substance’s definite form. Following this article, we will see some important reactions of HBr + Ag₂CO₃.

Silver carbonate is yellow and is used in the formation of silver powder which is used in the formation of microelectronics. It is used as a reagent in organic synthesis and as an oxidizing agent. HBr is a strong acid and gives a complete dissociation reaction with Ag₂CO₃.

The important reaction between HBr + Ag₂CO₃ is given in detail in this article with the balanced equation.

What is the product of HBr and Ag₂CO₃?

The reaction of HBr + Ag₂CO₃ forms silver bromide(AgBr), water(H₂O) and carbon dioxide(CO₂) as products in this reaction.

2HBr + Ag₂CO₃ = CO₂ + 2AgBr + H₂O

What type of reaction is HBr + Ag₂CO₃?

HBr and Ag₂CO₃ is a double displacement reaction or decomposition of a carbonate reaction.

HBr + Ag₂CO₃ = CO₂ + AgBr + H₂O

How to balance HBr + Ag₂CO₃?

The overall balanced molecular equation for HBr + Ag₂CO₃ is,

HBr + Ag₂CO₃ = CO₂ + AgBr +H₂O

The balanced equation for HBr + Ag₂CO₃ can be derived by using the following method:

• A variable is given to each compound and lable them,
  a HBr + b Ag₂CO₃ = d CO₂ + c AgBr + e H₂O
• There is a coefficient given which represents reactants and products alphabetically,
  H = 1a + 2d , Br= 1a + 1c , Ag = 2b + 1c, C = 1b+1e, O = 3b+ 1d+ 2f
• Solve all the variables by substituting or eliminating them and make them the simplest and whole integer value,
  a= 2 (HBr), b= 1(Ag₂CO₃), c= 2 (AgBr), d= 1( H₂O) , f= 1( CO₂)
• Substitute the coefficient. Thus the balanced equation is:
  2HBr + Ag₂CO₃ = CO₂ + 2AgBr +H₂O

HBr + Ag₂CO₃ net ionic equation

The net ionic equation for the HBr + Ag₂CO₃ is as follows;

2H⁺+ O^2- = H₂O

For determining the ionic equation, the following steps are used:

• A balanced equation should be used with a complete phase of each component,
  2HBr(aq) + Ag₂CO₃ (s) =CO₂ (g) + 2AgBr(s) + H₂O (l)
• The chemicals and aqueous salts in the equation are transformed into ions,
  2H+ + Br^–+2Ag⁺ + O^2-+ C0₂ = 2Ag⁺+ Br^– + CO₂ + H₂O
• The spectator ions must be canceled out to display the species involved in the reaction.
• Thus, the net ionic equation is:
  2H+ + O^2-= H₂O

HBr + Ag₂C0₃ conjugate pairs

Conjugate acid or base in HBr + Ag₂C0₃ are:

• HBr ( Conjugate Base) = Br^–
• HBr ( Conjuagte Acid) = H₃O⁺
•  Ag₂C0₃ is not an acid-base conjugate pair.

HBr and Ag₂C0₃ intermolecular forces

• Due to the large electronegativity difference between H & Br, HBr has dipole-dipole interaction.
• Ag₂C0₃ is ionic metal carbonate and has the electrostatic force of attraction.

HBr + Ag₂C0₃ reaction enthalpy

The reaction enthalpy of HBr + Ag₂C0₃ = – 131.13 Kj/mol

Numbers	Compounds	ΔH( kJ/mol)
1	AgBr	-100.37
2	H2O	-285.83
3	CO2	-393.51
4	HBr	-121.55
5	Ag2CO3	-505.85

• Total enthalpy change = Sum of all the enthalpies of product – Sum of all the enthalpies of reactant
• Enthalpy Change = { 2( -100.37) +(-285.83) + (- 393.51) } – {2 ( -121.55) + ( -505.85) }
  ΔH_f = – 131.13 Kj/ mol

Is HBr + Ag₂C0₃ a buffer solution?

HBr and Ag₂C0₃ do not give a buffer solution due to the presence of strong HBr.

Is HBr + Ag₂C0₃ a complete reaction?

HBr and Ag₂C0₃ is a complete reaction because the reactants convert to AgBr, water and carbon dioxide.

Is HBr + Ag₂C0₃ an exothermic or endothermic reaction?

The reaction between HBr and Ag₂C0₃ is exothermic because the total enthalpy change is negative, indicating that the heat is liberated.

Is HBr + Ag₂C0₃ a precipitation reaction?

HBr and Ag₂C0₃ is a precipitation reaction because silver bromide has very low solubility, and thus, it will not dissolve and will be obtained as ppt or residue after the reaction.

Is HBr + Ag₂C0₃ reversible or irreversible reaction?

The reaction between HBr and Ag₂C0₃ is irreversible. Due to the formation of pale-yellow precipitate after the reaction, it makes the reaction not possible to direct backward.

Is HBr + Ag₂C0₃ displacement reaction?

The reaction HBr and Ag₂C0₃ is a double-displacement reaction as both the reactants are completely displaced, and the formation of an entirely new product will take place.

Conclusion

Ag₂C0₃ is a pale–yellow monoclinic crystal, an important compound for organic synthesis reactions and when it reacts with strong acid, HBr forms a silver bromide precipitate. AgBr is insoluble, not sensitive to light, and is thus widely used in photographic films. The reaction is a displacement reaction.