Limiting Reagent KMnO4 + HBr + H2SO4 = MnSO4 + HBrO + K2SO4 + H20

Compound Coefficient Molar Mass Moles (g/mol) Weight (g)
KMnO4 20 158.033945
HBr 80 80.91194
H2SO4 30 98.07848
MnSO4 20 151.000645
HBrO 80 96.91134
K2SO4 10 174.2592
H20 3 20.1588


To calculate the limiting reagent, enter an equation of a chemical reaction and press the Start button. The reactants and products, along with their coefficients will appear above.

Enter any known value for each reactant. The limiting reagent will be highlighted.

  • Use uppercase for the first character in the element and lowercase for the second character. Examples: Fe, Au, Co, Br, C, O, N, F.
  • Ionic charges are not yet supported and will be ignored.
  • Replace immutable groups in compounds to avoid ambiguity. For example, C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but XC2H5 + O2 = XOH + CO2 + H2O will.
  • Compound states [like (s) (aq) or (g)] are not required.
  • You can use parenthesis () or brackets [].

How To Calculate Limiting Reagents

Coming Soon!