NaOH Solution Preparation Calculator
NaOH Solution Preparation Calculator: calculate feed mass with consistent units and explicit assumptions.
Inputs
kg
wt%
wt%
Results
- NaOH feed mass
- 20 kg
- Water mass
- 80 kg
Formula
Feed mass = final mass × (target−second feed)/(feed−second feed)
Adjustment = initial mass × (target−initial)/(feed−target)
Assumptions & limits
- Mass fractions are wt%, not volume%. Components are conserved; no reaction, evaporation or precipitation.
- Planning calculation only: verify assays, solubility, heat release and handling with a qualified chemist.
- NaOH concentration is mass percent of active anhydrous analyte. Use assay from supplier; no volume additivity assumption.
Worked example
For the example inputs: NaOH feed mass = 20 kg; Water mass = 80 kg.
Feed mass = final mass × (target−second feed)/(feed−second feed)