Acid-base titration curve calculator
pH at every titrant volume for a strong or weak acid titrated with NaOH, with equivalence, half-equivalence and an indicator check.
5 tabs · 1,775 formulas
Templates
Chemistry spreadsheet templates
Calculation sheets for the bench. They compute molar mass from an element count, plan stock solutions and serial dilutions, find the limiting reagent and the theoretical and percent yield of a reaction, prepare buffers with the Henderson-Hasselbalch equation, and fit a linear calibration curve to read unknown concentrations from absorbance.
Atomic weights follow the IUPAC standard atomic weights (abridged values); pKa values are typical literature values at 25 °C. Real solutions deviate from ideal behavior, so confirm critical preparations with a measurement.
Buffer preparation calculator (Henderson-Hasselbalch)
Acid and base form masses for a buffer at a target pH, from pKa values, with a titration route.
3 tabs · 41 formulas
Calibration curve and unknown concentration calculator (Beer-Lambert)
Least-squares calibration line, r squared, LOD and LOQ, and unknown concentrations from absorbance.
3 tabs · 260 formulas
Molar mass calculator from a chemical formula
Molar mass of a compound from its element counts, with mass percent and a grams-to-moles converter.
3 tabs · 111 formulas
Reaction stoichiometry and limiting reagent calculator
Limiting reagent, theoretical and percent yield, excess reagent left and reactant masses for a scale-up.
3 tabs · 60 formulas
Solution preparation and serial dilution calculator
Mass to weigh, stock and diluent volumes, unit conversions and serial dilution tables for lab solutions.
3 tabs · 138 formulas