pOH to pH Converter

Convert Between pOH and pH Values

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pOH ⇄ pH Converter

Convert between pOH and pH values using Kw relationship.

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Hydroxide Calculator

Calculate [OH⁻] and [H⁺] from pOH or pH.

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Understanding pOH and pH

pOH Basics

Key concepts:

  • Definition of pOH
  • Hydroxide ions
  • Base strength
  • pOH range (0-14)
  • Base dissociation

Hydroxide Chemistry

Important aspects:

  • Base properties
  • OH⁻ concentration
  • Base equilibria
  • Common bases
  • Neutralization

Applications

pOH used in:

  • Base solutions
  • Cleaning products
  • Water treatment
  • Industrial processes
  • Chemical synthesis

Common Values

Reference pOH values:

  • Pure water (pOH 7)
  • NaOH (0.1M) (pOH 1)
  • NH₃ (0.1M) (pOH ≈ 2.7)
  • Bleach (pOH ≈ 2)

Essential pOH/pH Formulas

pOH and pH

pOH + pH = 14

at 25°C

Hydroxide Concentration

pOH = -log[OH⁻]

[OH⁻] = 10⁻ᵖᴼᴴ

Base Strength

Strong base: pOH < 7

Weak base: pOH > 7