How to use the ph from hydroxide concentration calculator
Find pH of a base from [OH⁻]. Enter hydroxide concentration [oh⁻] in the field above; the poh, ph, [h⁺] are computed instantly and plotted on the chart so you can see how the answer changes.
Formula
Variables
- OH — Hydroxide concentration [OH⁻] (mol/L)
Worked example
With hydroxide concentration [oh⁻] = 0.01 mol/L, the calculator gives poh ≈ 2; ph ≈ 12; [h⁺] ≈ 1 × 10⁻¹² mol/L.
Frequently asked questions
What is the formula for the ph from hydroxide concentration calculation?
pOH = -log10(OH). pH = 14-[pOH]. [H⁺] (mol/L) = 10^(-[pH]). Here OH is hydroxide concentration [oh⁻] (mol/L).
What inputs do I need for the ph from hydroxide concentration calculator?
You need hydroxide concentration [oh⁻] in mol/L. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use this calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.