Blend five solutions in one clean form. Instantly get final molarity, total volume, and dilution. Export results to CSV or PDF for records easily.
Try these values to see a realistic blend calculation.
| Stream | Volume (mL) | Concentration (mol/L) | Density (g/mL) |
|---|---|---|---|
| A (Stock) | 25 | 1.50 | 1.02 |
| B | 75 | 0.20 | 1.00 |
| C (Solvent) | 100 | 0.00 | 0.99 |
Mixing models treat each stream as a carrier of solute moles and solvent volume. The calculator converts milliliters to liters, multiplies each stream concentration by its volume, and sums moles across streams. Dividing total moles by total mixed volume yields the final molarity. This matches common dilution practice when volumes are additive and the solute does not react. It works well for buffers, salts, and many aqueous stocks prepared at controlled temperature and consistent volumetric technique.
Dilution factor provides a quick check on how strongly a stock is stretched. Selecting a stock stream computes total volume divided by the chosen stock volume. For example, 25 mL of stock brought to 200 mL total is an 8.000× dilution. This supports SOP documentation, training, and repeatable batching, especially when final volume changes, for daily consistency. Use it alongside final molarity to confirm target strength and realistic handling volumes.
Percent contribution shows which stream dominates total moles, exposing sensitivity to measurement error. If one stream contributes 90% of moles, pipetting accuracy on that stream is critical, while minor contributors can tolerate larger relative deviations. The calculator reports moles per stream and contribution percentage so teams can prioritize calibration, verify glassware, and plan check-points. It also helps troubleshoot drift when concentrations change or labels are swapped before any corrective action.
Volume-based mixing is common, yet some workflows require mass tracking for shipping, inventory, or gravimetric preparation. When densities are provided, the calculator estimates mass as volume multiplied by density for each stream, then totals the values. It also reports a volume-weighted average density for the mixed solution. These approximations help plan container capacity, estimate payload weight, and compare measured mass with expected composition during routine production runs for logistics estimates.
Exported CSV captures inputs, outputs, and per-stream contributions for archiving in LIMS or spreadsheets. The PDF provides a printable batch record with totals and a breakdown table for signatures. Together, these exports support repeatability, change control, and deviation review. The notes field can store lot numbers, temperatures, and pH adjustments. Standardized digital records reduce transcription risk, speed reviews, and build confidence when multiple operators prepare similar solutions across extended projects and client reporting.
Enter concentration in mol/L and volume in mL. The calculator converts mL to L internally so moles and final molarity stay consistent.
Yes. Set concentration to 0.00 mol/L and enter the solvent volume. It will increase total volume and reduce final concentration appropriately.
Dilution factor compares total mixed volume to a selected stock volume. It helps confirm how much a stock is diluted and supports reproducible batch preparation.
No. Final concentration is computed from moles and total volume only. Density is used only for estimated mass and average density reporting.
It assumes volumes are additive and solute does not react or precipitate. For strong non-ideal mixtures, verify with lab measurements or activity-based methods.
Use the CSV for structured data storage and the PDF for signed batch records. Add notes for lot numbers, temperature, and any adjustments.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.