Input interpretation
silver nitrate + sodium iodide ⟶ sodium nitrate + silver(I) iodide
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 Set the number of atoms in the reactants equal to the number of atoms in the products for Ag, N, O, I and Na: Ag: | c_1 = c_4 N: | c_1 = c_3 O: | 3 c_1 = 3 c_3 I: | c_2 = c_4 Na: | 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_1 = 1 and solve the system of equations for the remaining coefficients: c_1 = 1 c_2 = 1 c_3 = 1 c_4 = 1 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | + ⟶ +
Structures
+ ⟶ +
Names
silver nitrate + sodium iodide ⟶ sodium nitrate + silver(I) iodide
Reaction thermodynamics
Enthalpy
| silver nitrate | sodium iodide | sodium nitrate | silver(I) iodide molecular enthalpy | -124.4 kJ/mol | -287.8 kJ/mol | -467.9 kJ/mol | -61.8 kJ/mol total enthalpy | -124.4 kJ/mol | -287.8 kJ/mol | -467.9 kJ/mol | -61.8 kJ/mol | H_initial = -412.2 kJ/mol | | H_final = -529.7 kJ/mol | ΔH_rxn^0 | -529.7 kJ/mol - -412.2 kJ/mol = -117.5 kJ/mol (exothermic) | | |
Gibbs free energy
| silver nitrate | sodium iodide | sodium nitrate | silver(I) iodide molecular free energy | -33.4 kJ/mol | -286.1 kJ/mol | -366 kJ/mol | -66.2 kJ/mol total free energy | -33.4 kJ/mol | -286.1 kJ/mol | -366 kJ/mol | -66.2 kJ/mol | G_initial = -319.5 kJ/mol | | G_final = -432.2 kJ/mol | ΔG_rxn^0 | -432.2 kJ/mol - -319.5 kJ/mol = -112.7 kJ/mol (exergonic) | | |
Entropy
| silver nitrate | sodium iodide | sodium nitrate | silver(I) iodide molecular entropy | 140.9 J/(mol K) | 91 J/(mol K) | 116 J/(mol K) | 115.5 J/(mol K) total entropy | 140.9 J/(mol K) | 91 J/(mol K) | 116 J/(mol K) | 115.5 J/(mol K) | S_initial = 231.9 J/(mol K) | | S_final = 231.5 J/(mol K) | ΔS_rxn^0 | 231.5 J/(mol K) - 231.9 J/(mol K) = -0.4 J/(mol K) (exoentropic) | | |
Chemical names and formulas
| silver nitrate | sodium iodide | sodium nitrate | silver(I) iodide Hill formula | AgNO_3 | INa | NNaO_3 | AgI name | silver nitrate | sodium iodide | sodium nitrate | silver(I) iodide IUPAC name | silver nitrate | sodium iodide | sodium nitrate | silver iodide
Substance properties
| silver nitrate | sodium iodide | sodium nitrate | silver(I) iodide molar mass | 169.87 g/mol | 149.89424 g/mol | 84.994 g/mol | 234.7727 g/mol phase | solid (at STP) | solid (at STP) | solid (at STP) | solid (at STP) melting point | 212 °C | 661 °C | 306 °C | 557 °C boiling point | | 1300 °C | | 1506 °C density | | 3.67 g/cm^3 | 2.26 g/cm^3 | 5.68 g/cm^3 solubility in water | soluble | | soluble | slightly soluble dynamic viscosity | | 0.0010446 Pa s (at 691 °C) | 0.003 Pa s (at 250 °C) | odor | odorless | | |
Units
