Input interpretation
sodium chloride + fluorine ⟶ chlorine + sodium fluoride
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 Cl, Na and F: Cl: | c_1 = 2 c_3 Na: | c_1 = c_4 F: | 2 c_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 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 2 + ⟶ + 2
Structures
+ ⟶ +
Names
sodium chloride + fluorine ⟶ chlorine + sodium fluoride
Reaction thermodynamics
Enthalpy
| sodium chloride | fluorine | chlorine | sodium fluoride molecular enthalpy | -411.2 kJ/mol | 0 kJ/mol | 0 kJ/mol | -576.6 kJ/mol total enthalpy | -822.4 kJ/mol | 0 kJ/mol | 0 kJ/mol | -1153 kJ/mol | H_initial = -822.4 kJ/mol | | H_final = -1153 kJ/mol | ΔH_rxn^0 | -1153 kJ/mol - -822.4 kJ/mol = -330.8 kJ/mol (exothermic) | | |
Gibbs free energy
| sodium chloride | fluorine | chlorine | sodium fluoride molecular free energy | -384.1 kJ/mol | 0 kJ/mol | 0 kJ/mol | -546.3 kJ/mol total free energy | -768.2 kJ/mol | 0 kJ/mol | 0 kJ/mol | -1093 kJ/mol | G_initial = -768.2 kJ/mol | | G_final = -1093 kJ/mol | ΔG_rxn^0 | -1093 kJ/mol - -768.2 kJ/mol = -324.4 kJ/mol (exergonic) | | |
Entropy
| sodium chloride | fluorine | chlorine | sodium fluoride molecular entropy | 72 J/(mol K) | 202.8 J/(mol K) | 223 J/(mol K) | 51.1 J/(mol K) total entropy | 144 J/(mol K) | 202.8 J/(mol K) | 223 J/(mol K) | 102.2 J/(mol K) | S_initial = 346.8 J/(mol K) | | S_final = 325.2 J/(mol K) | ΔS_rxn^0 | 325.2 J/(mol K) - 346.8 J/(mol K) = -21.6 J/(mol K) (exoentropic) | | |
Chemical names and formulas
| sodium chloride | fluorine | chlorine | sodium fluoride Hill formula | ClNa | F_2 | Cl_2 | FNa name | sodium chloride | fluorine | chlorine | sodium fluoride IUPAC name | sodium chloride | molecular fluorine | molecular chlorine | sodium fluoride
Substance properties
| sodium chloride | fluorine | chlorine | sodium fluoride molar mass | 58.44 g/mol | 37.996806326 g/mol | 70.9 g/mol | 41.98817244 g/mol phase | solid (at STP) | gas (at STP) | gas (at STP) | solid (at STP) melting point | 801 °C | -219.6 °C | -101 °C | 993 °C boiling point | 1413 °C | -188.12 °C | -34 °C | 1700 °C density | 2.16 g/cm^3 | 0.001696 g/cm^3 (at 0 °C) | 0.003214 g/cm^3 (at 0 °C) | 2.558 g/cm^3 solubility in water | soluble | reacts | | dynamic viscosity | | 2.344×10^-5 Pa s (at 25 °C) | | 0.00105 Pa s (at 1160 °C) odor | odorless | | | odorless
Units
