H⁺ Concentration from pH Calculator

Calculate Hydrogen Ion Concentration

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H⁺ Concentration Calculator

Calculate hydrogen ion concentration from pH value.

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Acid Strength Analyzer

Determine acid strength from H⁺ concentration.

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Understanding H⁺ Concentration

pH and [H⁺]

Key concepts:

  • pH definition
  • Logarithmic scale
  • Concentration units
  • Acid dissociation
  • Solution equilibria

Acid Strength

Important aspects:

  • Strong vs weak acids
  • Dissociation constants
  • Buffer solutions
  • Temperature effects
  • Ionic strength

Applications

[H⁺] important in:

  • Acid-base titrations
  • Buffer preparation
  • Chemical processes
  • Biological systems
  • Environmental analysis

Common Values

Reference [H⁺]:

  • Pure water: 1×10⁻⁷ M
  • Blood: 4×10⁻⁸ M
  • Vinegar: 1×10⁻³ M
  • Stomach acid: 0.1 M

Essential H⁺ Formulas

pH Definition

pH = -log[H⁺]

[H⁺] = 10⁻ᵖᴴ

Acid Dissociation

Ka = [H⁺][A⁻]/[HA]

pKa = -log(Ka)

Water Equilibrium

Kw = [H⁺][OH⁻] = 10⁻¹⁴

at 25°C