Write the acidic ionization equation for H₂SO₄. Be sure to include the proper phases for all species within the reaction.☐⁴⁻☐³⁻☐²⁻☐⁻☐⁺☐²⁺☐³⁺☐⁴⁺1234567890☐₁☐₂☐₃☐₄☐₅☐₆☐₇☐₈☐₉☐₀+()→⇌(s)(l)(g)(aq)SOH₂OSH₃O⁺OOH⁻HReset
Question
Write the acidic ionization equation for H₂SO₄. Be sure to include the proper phases for all species within the reaction.☐⁴⁻☐³⁻☐²⁻☐⁻☐⁺☐²⁺☐³⁺☐⁴⁺1234567890☐₁☐₂☐₃☐₄☐₅☐₆☐₇☐₈☐₉☐₀+()→⇌(s)(l)(g)(aq)SOH₂OSH₃O⁺OOH⁻HReset
Solution
The acidic ionization equation for H₂SO₄ (sulfuric acid) in water is a two-step process because H₂SO₄ is a strong diprotic acid, meaning it can donate two protons (H⁺ ions).
The first ionization step is:
H₂SO₄ (aq) → H⁺ (aq) + HSO₄⁻ (aq)
In this step, one hydrogen ion is released, leaving the hydrogen sulfate ion (HSO₄⁻).
The second ionization step is:
HSO₄⁻ (aq) → H⁺ (aq) + SO₄²⁻ (aq)
In this step, the hydrogen sulfate ion releases another hydrogen ion, leaving the sulfate ion (SO₄²⁻).
So, the overall ionization of sulfuric acid in water is:
H₂SO₄ (aq) → 2H⁺ (aq) + SO₄²⁻ (aq)
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