Solution Preparation Calculator
Solution preparation calculator
Find required solute mass for target molarity and final volume with purity correction.
InputsChemistry4 fieldsLive
Result
5.10167219 g
Pure solute mass 4.99963875 g • NaOH.
Live update
Chem signal
Advanced options
Flow
- Choose the reagent from compound options.
- Enter target molarity, final volume, and material purity.
- Use adjusted mass result as the weigh-out target for preparation.
Example
Worked example: 0.50 M NaOH, 250 mL, 98% purity
- 1 Pure mass = 0.50 × 0.250 × 40.00 = 5.00 g
- 2 Adjusted mass = 5.00 / 0.98 = 5.1020 g
- 3 Weigh 5.1020 g then dilute to 250 mL
Required weighed mass is approximately 5.10 g.
How
- Choose the reagent from compound options.
- Enter target molarity, final volume, and material purity.
- Use adjusted mass result as the weigh-out target for preparation.
Avoid
- Treating purity as whole number instead of percentage.
- Using stock solution concentration when this tool expects solid solute mass workflow.
- Ignoring final-volume adjustment after dissolution.
FAQ
Does this support purity adjustment?
Yes. Enter reagent purity percentage to get adjusted weigh-out mass.
Should I dissolve then top up to final volume?
Yes. The target volume is the final solution volume after dilution.
Can I use this for analytical standards?
Yes, as long as reagent purity and molar mass are correct for your standard.
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