Octet

Octet / Pka Table

HSO₄⁻

The pKa of HSO₄⁻ is 2. Second proton of H₂SO₄. A lower pKa means a stronger acid and a more stable conjugate base.

Pka Table details

Compound

HSO₄⁻

Pka

2

Notes

Second proton of H₂SO₄

This is one row of the pKa · protecting groups sheet - print all 31 pKa values on one page.

Pka Table

Related Content

Source collection

HI

The pKa of HI is -10. Strongest common acid. A lower pKa means a stronger acid and a more stable conjugate base.

HBr

The pKa of HBr is -9. A lower pKa means a stronger acid and a more stable conjugate base.

HCl

The pKa of HCl is -7. A lower pKa means a stronger acid and a more stable conjugate base.

H₂SO₄

The pKa of H₂SO₄ is -3. First proton. A lower pKa means a stronger acid and a more stable conjugate base.

HNO₃

The pKa of HNO₃ is -1.4. A lower pKa means a stronger acid and a more stable conjugate base.

H₃O⁺

The pKa of H₃O⁺ is -1.7. Hydronium ion. A lower pKa means a stronger acid and a more stable conjugate base.

Study guides

Related study guides

Free, in-depth guides that put this material in context.

SN1 vs SN2 decision guideE1 vs E2 elimination guideIdentify functional groupsAll guides