Input interpretation
silver chloride ⟶ chlorine + silver
Balanced equation
Balance the chemical equation algebraically: ⟶ + Add stoichiometric coefficients, c_i, to the reactants and products: c_1 ⟶ c_2 + c_3 Set the number of atoms in the reactants equal to the number of atoms in the products for Ag and Cl: Ag: | c_1 = c_3 Cl: | c_1 = 2 c_2 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 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 2 ⟶ + 2
Structures
⟶ +
Names
silver chloride ⟶ chlorine + silver
Reaction thermodynamics
Enthalpy
| silver chloride | chlorine | silver molecular enthalpy | -127 kJ/mol | 0 kJ/mol | 0 kJ/mol total enthalpy | -254 kJ/mol | 0 kJ/mol | 0 kJ/mol | H_initial = -254 kJ/mol | H_final = 0 kJ/mol | ΔH_rxn^0 | 0 kJ/mol - -254 kJ/mol = 254 kJ/mol (endothermic) | |
Entropy
| silver chloride | chlorine | silver molecular entropy | 96.3 J/(mol K) | 223 J/(mol K) | 42.6 J/(mol K) total entropy | 192.6 J/(mol K) | 223 J/(mol K) | 85.2 J/(mol K) | S_initial = 192.6 J/(mol K) | S_final = 308.2 J/(mol K) | ΔS_rxn^0 | 308.2 J/(mol K) - 192.6 J/(mol K) = 115.6 J/(mol K) (endoentropic) | |
Chemical names and formulas
| silver chloride | chlorine | silver Hill formula | AgCl | Cl_2 | Ag name | silver chloride | chlorine | silver IUPAC name | chlorosilver | molecular chlorine | silver
Substance properties
| silver chloride | chlorine | silver molar mass | 143.32 g/mol | 70.9 g/mol | 107.8682 g/mol phase | solid (at STP) | gas (at STP) | solid (at STP) melting point | 455 °C | -101 °C | 960 °C boiling point | 1554 °C | -34 °C | 2212 °C density | 5.56 g/cm^3 | 0.003214 g/cm^3 (at 0 °C) | 10.49 g/cm^3 solubility in water | | | insoluble
Units
