15 Facts on H2SO4 + Sr: What, How To Balance & FAQs

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H2SO4 is an acid and dehydrating agent. Strontium (Sr) is an alkaline earth metal and reactive. Let us put some light on H2SO4 + Sr reaction.

H2SO4 and Sr react to form a salt and gas is released. Sr is a soft silvery and yellowish metallic element with high reactivity. The atomic number of Strontium is 38 and it belongs to group 2 of the periodic table. H2SO4 is the strongest dehydrating agent with the exception of P2O5.

This article will help in understanding facts about H2SO4 + Sr reaction like reaction type, chemical equation, products formed and intermolecular forces.

What is the product of H2SO4 and Sr

Celestine (SrSO4) and H2 are the products of the H2SO4 + Sr reaction.

Sr + H2SO4 = SrSO4 + H2

What type of reaction is H2SO4 + Sr

H2SO4 + Sr is a single displacement reaction.

How to balance H2SO4 + Sr

H2SO4 + Sr reaction should be balanced in the following steps,

  • The general chemical equation for H2SO4 + Sr is
  • Sr + H2SO4 = SrSO4 + H2
  • To check whether the number of individual atoms on the reactant and product side are the same or not. In this case, the number of atoms is the same; thus, the equation is already balanced.
  • Therefore, the balanced chemical equation is,
  • Sr + H2SO4 = SrSO4 + H2

H2SO4 + Sr titration

In H2SO4 + Sr reaction the titration is impossible because H2SO4 is an acid but, Sr is an elementary metal that cannot be titrated through any process.

H2SO4 + Sr net ionic equation

H2SO4 + Sr reaction net ionic equation is,

Sr (s) + 2H+ (aq.) + SO42- (aq.) = SrSO4 (s) + H2 (g)

  • Write the balanced general chemical equation
  • Sr + H2SO4 = SrSO4 + H2
  • Indicate the states of each molecule included in the chemical equation
  • Sr (s) + H2SO4 (aq.) = SrSO4 (s) + H2 (g)
  • Split the strong electrolytes into their ionic forms to obtain the net ionic equation
  • Sr (s) + 2H+ (aq.) + SO42- (aq.) = SrSO4 (s) + H2 (g)

H2SO4 + Sr conjugate pairs

The H2SO4 and Sr pair itself does not have any conjugate pairs,

  • Conjugate pair of H2SO4 is its conjugate base HSO4–.
  • The conjugate pair of Sr does not exist.

H2SO4 and Sr intermolecular forces

H2SO4 + Sr reaction has the following intermolecular forces,

  • The intermolecular force between H2SO4 is hydrogen bonding. That is why sulphuric acid is readily soluble in water.
  • Sr contains metallic bonds.
  • H2 gas has dipole-dipole interaction.
  • SrSO4 is an ionic compound therefore, ionic interactions are present between them.

H2SO4 + Sr reaction enthalpy

The enthalpy of reaction for H2SO4 + Sr is -543.8 kJ/mol. The standard enthalpy of formation for the reactants and products are:

MoleculesReaction enthalpy (in kJ/mol)
H2SO4-909.27
Sr0
SrSO4-1453.1
H20
Reaction enthalpy of compounds

ΔfH: Standard enthalpy of formation of products – Standard enthalpy of formation of reactants

ΔfH: [ -1453.1 -0] – [-909.27]

ΔfH: -543.8 kJ/mol

Is H2SO4 + Sr a buffer solution

H2SO4 + Sr reaction is not a buffer solution because there should be a weak acid for a buffer solution, whereas H2SO4 is a strong acid.

Is H2SO4 + Sr a complete reaction

H2SO4 + Sr reaction is a complete reaction and the product formed are Celestine (SrSO4) and H2.

Is H2SO4 + Sr an exothermic or endothermic reaction

H2SO4 + Sr reaction is an exothermic reaction because the enthalpy of reaction has a negative value.

Screenshot 20221118 171507 4
Exothermic reaction graph

Is H2SO4 + Sr a redox reaction

H2SO4 and Sr reaction is a redox reaction where Sr is getting oxidized and hydrogen is getting reduced.

Screenshot 20221127 185849
Redox reaction

Is H2SO4 + Sr a precipitation reaction

H2SO4 + Sr reaction is a precipitation reaction and the precipitate of Strontium is formed which is silvery white in colour.

Is H2SO4 + Sr reversible or irreversible reaction

H2SO4 + Sr reaction is an irreversible reaction because the precipitates and the gas evolved during the progress of the reaction cannot be reverted back.

Is H2SO4 + Sr displacement reaction

H2SO4 + Sr reaction is a single displacement or substitution reaction where Strontium replaces H2 from sulphuric acid (H2SO4) to SrSO4 and releases H2 gas.

Conclusion

This article concludes that Sr has a strong affinity to form a salt when reacting with H2SO4. Sr is an alkaline earth metal, meaning it has some basic character in its chemical properties. It may have several industrial importance.