FREE QUALITY TOOL
Buffer Preparation Calculator
Mass = molarity x molecular weight x volume
The result updates as valid values are entered.
Unit handlingCompatible units are normalized internally. Confirm units, assumptions and significant figures before use.
CALCULATION GUIDE
Understand your calculation
Clear inputs, a practical example and the context you need to interpret your result.
How it works
Mass (g) = target molarity (mol/L) × molecular weight (g/mol) × final volume (L).
Inputs and units
Enter nonnegative target molarity, positive molecular weight and positive final volume. Choose mL or L for volume.
Worked example
0.1 mol/L × 136.09 g/mol × 0.5 L = 6.8045 g required.
Interpreting the result
The result is the theoretical mass of the single substance specified.
Assumptions and limitations
This tool does not design a buffer, calculate pH, choose an acid/base ratio or account for pKa, ionic strength, hydrate form or purity. A validated preparation procedure is still required.