Input interpretation
hydrogen bromide + potassium bromate ⟶ water + bromine + potassium bromide
Balanced equation
Balance the chemical equation algebraically: + ⟶ + + Add stoichiometric coefficients, c_i, to the reactants and products: c_1 + c_2 ⟶ c_3 + c_4 + c_5 Set the number of atoms in the reactants equal to the number of atoms in the products for Br, H, K and O: Br: | c_1 + c_2 = 2 c_4 + c_5 H: | c_1 = 2 c_3 K: | c_2 = c_5 O: | 3 c_2 = c_3 Since the coefficients are relative quantities and underdetermined, choose a coefficient to set arbitrarily. To keep the coefficients small, the arbitrary value is ordinarily one. For instance, set c_2 = 1 and solve the system of equations for the remaining coefficients: c_1 = 6 c_2 = 1 c_3 = 3 c_4 = 3 c_5 = 1 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 6 + ⟶ 3 + 3 +
Structures
+ ⟶ + +
Names
hydrogen bromide + potassium bromate ⟶ water + bromine + potassium bromide
Reaction thermodynamics
Enthalpy
| hydrogen bromide | potassium bromate | water | bromine | potassium bromide molecular enthalpy | -36.3 kJ/mol | -360.2 kJ/mol | -285.8 kJ/mol | 0 kJ/mol | -393.8 kJ/mol total enthalpy | -217.8 kJ/mol | -360.2 kJ/mol | -857.5 kJ/mol | 0 kJ/mol | -393.8 kJ/mol | H_initial = -578 kJ/mol | | H_final = -1251 kJ/mol | | ΔH_rxn^0 | -1251 kJ/mol - -578 kJ/mol = -673.3 kJ/mol (exothermic) | | | |
Gibbs free energy
| hydrogen bromide | potassium bromate | water | bromine | potassium bromide molecular free energy | -53.4 kJ/mol | -2712 kJ/mol | -237.1 kJ/mol | 0 kJ/mol | -380.7 kJ/mol total free energy | -320.4 kJ/mol | -2712 kJ/mol | -711.3 kJ/mol | 0 kJ/mol | -380.7 kJ/mol | G_initial = -3032 kJ/mol | | G_final = -1092 kJ/mol | | ΔG_rxn^0 | -1092 kJ/mol - -3032 kJ/mol = 1940 kJ/mol (endergonic) | | | |
Chemical names and formulas
| hydrogen bromide | potassium bromate | water | bromine | potassium bromide Hill formula | BrH | BrKO_3 | H_2O | Br_2 | BrK name | hydrogen bromide | potassium bromate | water | bromine | potassium bromide IUPAC name | hydrogen bromide | potassium bromate | water | molecular bromine | potassium bromide