Limiting Reagent RbNO3 + BeF2 = Be(NO3)2 + RbF

Compound Coefficient Molar Mass Moles (g/mol) Weight (g)
RbNO3 2 147.4727
BeF2 1 47.0089884
Be(NO3)2 1 133.021982
RbF 2 104.4662032


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

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