alcl3 hno3

AlCl3 is commonly known as aluminum chloride or aluminum trichloride, a colorless crystal. HNO3 is nitric acid, and it is a strong acid. Let us see the reaction of HNO3 + AlCl3.

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 HNO3 is an inorganic compound; it is generally a colorless compound, but the older sample is sometimes found in yellow color due lớn decomposition into oxides of nitrogen. AlCl3 has a low melting point; it produces and consumes aluminum metal. 

Here, in this article, we will discuss some facts about the  HNO3 + AlCl3 reaction, lượt thích net ionic reaction, type of reaction etc.

What is the product of HNO3 and AlCl3

Aluminum nitrate [Al(NO3)3] and hydrogen chloride (HCl) are formed in the HNO3 + AlCl3 reaction.

HNO3 + AlCl3 → HCl + Al(NO3)3

What type of reaction is HNO3 + AlCl3

HNO3 + AlCl3 is salt metathesis reaction.

How lớn balance HNO3 + AlCl3

The balance equation for HNO3 + AlCl3 is below

3 HNO3 + AlCl3 → 3 HCl + Al(NO3)3

  • To balance the equation, we first count all the atoms on the reactant and product sides. 
  • a HNO3 + b AlCl3 → c HCl + d Al(NO3)3
  • After that, we see a table below :
AtomReactant SideProduct Side
Molecules Number
  • Now, we see that N, O, and Cl atom numbers are not the same on the reactant and product sides. 
  • If we add a= 3 and c=3, the equation is balanced properly.
  • The balanced equation is
  • 3 HNO3 + AlCl3 → 3 HCl + Al(NO3)3

HNO3 + AlCl3 titration

Titration is impossible in HNO3 + AlCl3 reaction because aluminum nitrate is formed in the reaction. Al(NO3)3 is a white salt, that’s why titration is not possible. 

HNO3 + AlCl3 net ionic equation

Here no net ionic equation is present in HNO3 + AlCl3 reaction.

  • At first, the soluble ionic compounds dissociate into the ions. Here no net ionic equation is present in HNO3 + AlCl3 reaction.
  • 3 H+ + 3 NO3+ Al3+ + 3 Cl = 3 H+ + 3 Cl+ Al3+ + 3 NO3
  • All are spectator ions, ví all the ions cancel each other. 
  • Thus, no net ionic equation is possible.

HNO3 + AlCl3 conjugate pairs

The conjugate pairs of HNO3 + AlCl3 reaction is conjugate base of HNO3 is NO3.

HNO3 and AlCl3 intermolecular forces

HNO3 and AlCl3 have intermolecular forces, which are shown below:

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  • HNO3 has dipole-dipole interaction and London dispersion force. 
  • AlCl3 has dipole-dipole interaction .

HNO3 + AlCl3 reaction enthalpy

The reaction enthalpy of the HNO3 + AlCl3 reaction is 427.43 KJ/mol

The standard enthalpy change of each of the components is below: 

ElementΔfH° (KJ/mol)
Standard enthalpy value
  • ΔfH°(reactant) = [-207+ (-705.63)] = -912.63 KJ/mol
  • ΔfH°(product) =  [-318.0+ (-167.2)] = -485.2 KJ/mol
  • Reaction enthalpy =  ΔfH°(product) – ΔfH°(reactant) = – 485.2 – (-912.63) = 427.43  KJ/mol

Is HNO3 + AlCl3 a buffer solution

HNO3 + AlCl3  is not a buffer solution because HNO3 is a strong acid, and we know that we need a weak acid and its conjugated salt lớn make a buffer solution.

Is HNO3 + AlCl3 a complete reaction

HNO3 + AlCl3 is a complete reaction. When the reaction happens, the aluminum nitrate is formed as a product, which is a salt. 

Is HNO3 + AlCl3 an exothermic or endothermic reaction

HNO3 + AlCl3 is the endothermic reaction because we see from the enthalpy that there was a positive value. 

Is HNO3 + AlCl3 a redox reaction

HNO3 + AlCl3 is not a redox reaction because a redox reaction occurs when the oxidation state of atoms is changed but here, no oxidation state changes after and before the reaction.

Is HNO3 + AlCl3 a precipitation reaction

HNO3 + AlCl3 is not a precipitation reaction because during the reaction product is formed in salt sườn. 

Is HNO3 + AlCl3 reversible or irreversible reaction

HNO3 + AlCl3  is the irreversible reaction because a complete reaction is created. 

Is HNO3 + AlCl3 displacement reaction

HNO3 + AlCl3  is a double displacement reaction or salt metathesis reaction. H is lớn replace Al with AlCl3 and make HCl. Al replaced H from HNO3 and made Al(NO3)3

Double displacement reaction


We can conclude from this article that the HNO3 + AlCl3 reaction is a double displacement reaction. In this reaction, titration is not possible.

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