pOH from hydroxide concentration
pOH from hydroxide concentration: use hydroxide-ion concentration. Review the formula, worked example and calculation steps.
Inputs
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Formula & explanation
pOH ≈ −log₁₀([OH⁻]/1 mol L⁻¹)
Variables & units
- Hydroxide-ion concentration
- mol/L · minimum 5e-324, maximum 1000000000000
Worked example
Use the displayed example inputs, then follow the substituted values in the solution.
Assumptions
Ideal dilute-solution approximation. The familiar pH+pOH=14 relation is temperature dependent.
References
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
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