Input interpretation
hydrogen chloride + pearl ash ⟶ water + carbon dioxide + potassium chloride
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 Cl, H, C, K and O: Cl: | c_1 = c_5 H: | c_1 = 2 c_3 C: | c_2 = c_4 K: | 2 c_2 = c_5 O: | 3 c_2 = c_3 + 2 c_4 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 = 2 c_2 = 1 c_3 = 1 c_4 = 1 c_5 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 2 + ⟶ + + 2
Structures
+ ⟶ + +
Names
hydrogen chloride + pearl ash ⟶ water + carbon dioxide + potassium chloride
Reaction thermodynamics
Enthalpy
| hydrogen chloride | pearl ash | water | carbon dioxide | potassium chloride molecular enthalpy | -92.3 kJ/mol | -1151 kJ/mol | -285.8 kJ/mol | -393.5 kJ/mol | -436.5 kJ/mol total enthalpy | -184.6 kJ/mol | -1151 kJ/mol | -285.8 kJ/mol | -393.5 kJ/mol | -873 kJ/mol | H_initial = -1336 kJ/mol | | H_final = -1552 kJ/mol | | ΔH_rxn^0 | -1552 kJ/mol - -1336 kJ/mol = -216.7 kJ/mol (exothermic) | | | |
Gibbs free energy
| hydrogen chloride | pearl ash | water | carbon dioxide | potassium chloride molecular free energy | -95.3 kJ/mol | -1064 kJ/mol | -237.1 kJ/mol | -394.4 kJ/mol | -408.5 kJ/mol total free energy | -190.6 kJ/mol | -1064 kJ/mol | -237.1 kJ/mol | -394.4 kJ/mol | -817 kJ/mol | G_initial = -1254 kJ/mol | | G_final = -1449 kJ/mol | | ΔG_rxn^0 | -1449 kJ/mol - -1254 kJ/mol = -194.4 kJ/mol (exergonic) | | | |
Chemical names and formulas
| hydrogen chloride | pearl ash | water | carbon dioxide | potassium chloride Hill formula | ClH | CK_2O_3 | H_2O | CO_2 | ClK name | hydrogen chloride | pearl ash | water | carbon dioxide | potassium chloride IUPAC name | hydrogen chloride | dipotassium carbonate | water | carbon dioxide | potassium chloride