The most easier way of representing a chemical reaction is through using chemical symbols. Let us discuss about the reaction of HBr and Hg2 (NO3 )2.
Hydrogen bromide or HBr is a strong acid and mercurous nitrate, Hg2 (NO3 )2 is a inorganic compound which is also acidic. Hydrogen bromide is a colorless gas with molar mass 80.91 g/mol. Its boiling point and melting point is found to be low. It is soluble in ethanol and most of the organic solvents.
HBr is one type of hydrogen halide which is a precursor of most of bromine products. Let us discuss about HBr + Hg2 (NO3 )2 with all details.
What is the product of HBr and Hg2 (NO3 )2
HBr reacts with Hg2 (NO3 )2 to give the products mercurous bromide and nitric acid
2HBr + Hg2 (NO3 )2 ——–> Hg2Br2 + 2HNO3
What type of reaction is HBr + Hg2 (NO3 )2
HBr + Hg2 (NO3 )2 is a double displacement reaction or metathesis. In this reaction hydrogen is replaced by mercury to form the products like mercurous bromide and nitric acid.
How to balance HBr + Hg2 (NO3 )2
HBr + Hg2 (NO3 )2 is not balanced and requires the following steps,
- Assigning certain coefficients to both reactants and products
- a HBr + b Hg2 (NO3 )2 —–> c Hg2Br2 + d HNO3
- A linear equation is made with the above reaction
- H= a= d, Br =a =2c, Hg =2b = 2c, N =2b =d, O = 6b=3d
- 2a =d, a=2c, 2b=2c, 2b=d, 6b =3d
- Solve the above equation using gauss elimination method
- a =2, b= 1, c= 1, d= 2
- The balanced equation of HBr + Hg2 (NO3 )2 is
- 2 HBr + Hg2 (NO3 )2 —–> Hg2Br2 + 2 HNO3
HBr + Hg2 (NO3 )2 titration
HBr + Hg2 (NO3 )2 titration can not be performed. It is because both the reactants are acids.
HBr + Hg2 (NO3 )2 net ionic equation
The net ionic equation of HBr and Hg2 (NO3 )2 is ,
2 Br– + Hg22+ ——> Hg2Br2 .
- The ionic dissociation of HBr and Hg2 (NO3 )2 is
- 2H+ + Br– ——-> HBr
- Hg22+ + NO3– ——–> Hg2 (NO3 )2
HBr + Hg2 (NO3 )2 conjugate Pairs
HBr + Hg2 (NO3 )2 has the following conjugate pairs,
- The conjugate base of HBr is Br– or bromide ion.
- The conjugate base of Hg2 (NO3 )2 is NO3– or nitrate ion.
HBr and Hg2 (NO3 )2 intermolecular forces
HBr + Hg2 (NO3 )2 reaction has the following intermolecular forces,
- In HBr a dipole is formed in between hydrogen and electronegative bromine atom.
- In Hg2 (NO3 )2 both metallic bonds and ion induced dipole forces existed.
HBr + Hg2 (NO3 )2 reaction enthalpy
The enthalpy of formation of HBr and Hg2 (NO3 )2 is -36.45 and – 207 kJ/mol respectively.
Is HBr + Hg2 (NO3 )2 a buffer solution
HBr + Hg2 (NO3 )2 is not a buffer solution because HBr a strong acid and Hg2 (NO3 )2 is also a weak acid. Mixing both these won’t make any buffer solution
Is HBr + Hg2 (NO3 )2 a complete reaction
HBr + Hg2 (NO3 )2 is a complete reaction. The reaction is complete with stable products. All the reactant molecules are converted into respective products.
Is HBr + Hg2 (NO3 )2 an exothermic or endothermic reaction
HBr + Hg2 (NO3 )2 reaction is a neither endothermic nor exothermic reaction as the enthalpy of this reaction is not found.
Is HBr + Hg2 (NO3 )2 a redox reaction
HBr + Hg2 (NO3 )2 is not a redox reaction but both oxidation and reduction occurs on a redox reaction.
Is HBr + Hg2 (NO3 )2 a precipitation reaction
HBr + Hg2 (NO3 )2 is a reaction that forms a precipitate. The reaction yields a white solid substance or precipitates along with nitric acid.
Is HBr + Hg2 (NO3 )2 reversible or irreversible reaction
HBr + Hg2 (NO3 )2 is an irreversible reaction as it can’t be reversed back to give the reactants.
Is HBr + Hg2 (NO3 )2 a displacement reaction
HBr + Hg2 (NO3 )2 is a double Displacement reaction. In this reaction, the anions and cations of both the reactants are exchanged with each other to get stable products like nitric acid and mercurous bromide.
Conclusion
In this article HBr and Hg2 (NO3 )2 reaction is discussed. Hg2 (NO3 )2 is a salt of nitric acid which is yellow in color. The solubility of Hg2 (NO3 )2 is slightly in water with acidic behavior.
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Hi… I am Aparna Dev, a chemistry Postgraduate with a good understanding of chemistry concepts. I am working in Kerala Minerals and Metals Limited Kollam with experience in the development of electrocatalysts as a part of post graduate thesis.
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