Sam Gorman

Balance chemical equations with smallest whole-number coefficients and check atom counts for each element side by side.

Calculate rate constants, activation energy, A, temperature, or a new-temperature rate with unit-safe Arrhenius formulas.

Find actual yield, theoretical yield, or percent yield with gram-to-mole conversion and clear mixed-unit checks.

Find activation energy from Arrhenius data using k, A, and temperature or two temperatures and two rate constants.

Calculate total water hardness in mg/L as CaCO3 and grains per gallon from a report reading or calcium and magnesium values.

Find an unknown titrant or analyte concentration or volume at equivalence using molarity, mL, and reaction parts.

Convert conductivity, TDS, ppm, and mg/L with a chosen meter factor and quick drinking-water context.

Calculate a missing dilution value, stock volume, diluent difference, final volume, or dilution factor from your solution values.