HNO3 + BaO = H2O + Ba(NO3)2

HNO_3 nitric acid + BaO barium oxide ⟶ H_2O water + Ba(NO_3)_2 barium nitrate

Balance the chemical equation algebraically: HNO_3 + BaO ⟶ H_2O + Ba(NO_3)_2 Add stoichiometric coefficients, c_i, to the reactants and products: c_1 HNO_3 + c_2 BaO ⟶ c_3 H_2O + c_4 Ba(NO_3)_2 Set the number of atoms in the reactants equal to the number of atoms in the products for H, N, O and Ba: H: | c_1 = 2 c_3 N: | c_1 = 2 c_4 O: | 3 c_1 + c_2 = c_3 + 6 c_4 Ba: | 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 = 1 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 2 HNO_3 + BaO ⟶ H_2O + Ba(NO_3)_2

+ ⟶ +

nitric acid + barium oxide ⟶ water + barium nitrate

ΔG_rxn^0 | -8163 kJ/mol - -681.7 kJ/mol = -7481 kJ/mol (exergonic)

K_c = ([H2O] [Ba(NO3)2])/([HNO3]^2 [BaO])

rate = -1/2 (Δ[HNO3])/(Δt) = -(Δ[BaO])/(Δt) = (Δ[H2O])/(Δt) = (Δ[Ba(NO3)2])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)

| nitric acid | barium oxide | water | barium nitrate formula | HNO_3 | BaO | H_2O | Ba(NO_3)_2 Hill formula | HNO_3 | BaO | H_2O | BaN_2O_6 name | nitric acid | barium oxide | water | barium nitrate IUPAC name | nitric acid | oxobarium | water | barium(+2) cation dinitrate

| nitric acid | barium oxide | water | barium nitrate molar mass | 63.012 g/mol | 153.326 g/mol | 18.015 g/mol | 261.34 g/mol phase | liquid (at STP) | solid (at STP) | liquid (at STP) | solid (at STP) melting point | -41.6 °C | 1920 °C | 0 °C | 592 °C boiling point | 83 °C | | 99.9839 °C | density | 1.5129 g/cm^3 | 5.72 g/cm^3 | 1 g/cm^3 | 3.23 g/cm^3 solubility in water | miscible | | | surface tension | | | 0.0728 N/m | dynamic viscosity | 7.6×10^-4 Pa s (at 25 °C) | | 8.9×10^-4 Pa s (at 25 °C) | odor | | | odorless |