Substance
1 · Mass to dissolve
Mass to dissolve
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2 · Actual concentration
Enter the mass you actually weighed — it computes the real concentration.
Show concentration in:
Preparation card
Fill in substance name, volume and mass to generate the card.
Values
Enter at least 2 values. Comma or point — both work.
Result
Enter at least 2 valid values to compute.
Add substance
Library (0)
CSV: 1st column = substance, 2nd = molar mass (g/mol), optional 3rd = solvent. Comma or semicolon separated; a header row is ignored.
Calibration
Calibration points
Calibration card
Determine unknown pH
mV
Buffer
Preparation method
Concentration of each stock solution. HA = protonated form, A⁻ = deprotonated form.
Buffer recipe
Fill in pKa, target pH, concentration and volume to build the recipe.