Input interpretation
oxygen + hydrogen ⟶ hydrogen peroxide
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 O and H: O: | 2 c_1 = 2 c_3 H: | 2 c_2 = 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 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | + ⟶
Structures
+ ⟶
Names
oxygen + hydrogen ⟶ hydrogen peroxide
Reaction thermodynamics
Gibbs free energy
| oxygen | hydrogen | hydrogen peroxide molecular free energy | 231.7 kJ/mol | 0 kJ/mol | -120.4 kJ/mol total free energy | 231.7 kJ/mol | 0 kJ/mol | -120.4 kJ/mol | G_initial = 231.7 kJ/mol | | G_final = -120.4 kJ/mol ΔG_rxn^0 | -120.4 kJ/mol - 231.7 kJ/mol = -352.1 kJ/mol (exergonic) | |
Chemical names and formulas
| oxygen | hydrogen | hydrogen peroxide Hill formula | O_2 | H_2 | H_2O_2 name | oxygen | hydrogen | hydrogen peroxide IUPAC name | molecular oxygen | molecular hydrogen | hydrogen peroxide
Substance properties
| oxygen | hydrogen | hydrogen peroxide molar mass | 31.998 g/mol | 2.016 g/mol | 34.014 g/mol phase | gas (at STP) | gas (at STP) | liquid (at STP) melting point | -218 °C | -259.2 °C | -0.43 °C boiling point | -183 °C | -252.8 °C | 150.2 °C density | 0.001429 g/cm^3 (at 0 °C) | 8.99×10^-5 g/cm^3 (at 0 °C) | 1.44 g/cm^3 solubility in water | | | miscible surface tension | 0.01347 N/m | | 0.0804 N/m dynamic viscosity | 2.055×10^-5 Pa s (at 25 °C) | 8.9×10^-6 Pa s (at 25 °C) | 0.001249 Pa s (at 20 °C) odor | odorless | odorless |
Units
