Input interpretation
sodium chloride + lead(II) nitrate ⟶ sodium nitrate + lead(II) 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 Set the number of atoms in the reactants equal to the number of atoms in the products for Cl, Na, N, O and Pb: Cl: | c_1 = 2 c_4 Na: | c_1 = c_3 N: | 2 c_2 = c_3 O: | 6 c_2 = 3 c_3 Pb: | 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 = 2 c_4 = 1 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 2 + ⟶ 2 +
Structures
+ ⟶ +
Names
sodium chloride + lead(II) nitrate ⟶ sodium nitrate + lead(II) chloride
Reaction thermodynamics
Enthalpy
| sodium chloride | lead(II) nitrate | sodium nitrate | lead(II) chloride molecular enthalpy | -411.2 kJ/mol | -451.9 kJ/mol | -467.9 kJ/mol | -359.4 kJ/mol total enthalpy | -822.4 kJ/mol | -451.9 kJ/mol | -935.8 kJ/mol | -359.4 kJ/mol | H_initial = -1274 kJ/mol | | H_final = -1295 kJ/mol | ΔH_rxn^0 | -1295 kJ/mol - -1274 kJ/mol = -20.9 kJ/mol (exothermic) | | |
Chemical names and formulas
| sodium chloride | lead(II) nitrate | sodium nitrate | lead(II) chloride Hill formula | ClNa | N_2O_6Pb | NNaO_3 | Cl_2Pb name | sodium chloride | lead(II) nitrate | sodium nitrate | lead(II) chloride IUPAC name | sodium chloride | plumbous dinitrate | sodium nitrate | dichlorolead
Substance properties
| sodium chloride | lead(II) nitrate | sodium nitrate | lead(II) chloride molar mass | 58.44 g/mol | 331.2 g/mol | 84.994 g/mol | 278.1 g/mol phase | solid (at STP) | solid (at STP) | solid (at STP) | solid (at STP) melting point | 801 °C | 470 °C | 306 °C | 501 °C boiling point | 1413 °C | | | 950 °C density | 2.16 g/cm^3 | | 2.26 g/cm^3 | 5.85 g/cm^3 solubility in water | soluble | | soluble | dynamic viscosity | | | 0.003 Pa s (at 250 °C) | odor | odorless | odorless | |
Units
