The solution preparation
toolbox.
Keep concentration bases, dilution steps and ideal solution models clear.
11 useful places to start.
Arithmetic for supplied chemical assumptions. No chemical identity, safe handling, solubility or clinical interpretation is inferred.
Molality calculator
Calculate solute moles per kilogram of solvent, keeping solvent and solution mass separate.
Solution dilution calculator
Calculate stock volume for a target concentration and final volume.
Serial dilution planner
Build a concentration table for equal-volume repeated dilution steps.
Solution concentration by blending
Mix two solutions of the same solute using mass percentages.
Ideal osmotic pressure
Estimate dilute-solution osmotic pressure from concentration and a particle factor.
pH, pOH & concentration
Relate pH, pOH and idealised hydronium/hydroxide concentrations using a stated pKw.
Weak acid buffer pH
Explore the Henderson–Hasselbalch model with a stated conjugate pair.
Boiling & freezing point shifts
Estimate ideal boiling-point elevation and freezing-point depression from molality.
Reaction percentage yield
Compare actual product yield with a supplied theoretical yield.
Molar concentration converter
Convert mol/L, mmol/L, micromoles per litre and mol/m³.
Amount of substance converter
Convert moles, millimoles, micromoles, nanomoles and picomoles.
A few things you
can tick off.
- Keep solvent mass separate from solution mass
- Plan the concentration at each dilution step
- Check a mass-percentage blend