Input interpretation
sodium hydroxide + hydrogen peroxide + Cr(OH)3 ⟶ water + sodium chromate
Balanced equation
Balance the chemical equation algebraically: + + Cr(OH)3 ⟶ + Add stoichiometric coefficients, c_i, to the reactants and products: c_1 + c_2 + c_3 Cr(OH)3 ⟶ c_4 + c_5 Set the number of atoms in the reactants equal to the number of atoms in the products for H, Na, O and Cr: H: | c_1 + 2 c_2 + 3 c_3 = 2 c_4 Na: | c_1 = 2 c_5 O: | c_1 + 2 c_2 + 3 c_3 = c_4 + 4 c_5 Cr: | c_3 = c_5 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_3 = 1 and solve the system of equations for the remaining coefficients: c_1 = 2 c_2 = 3/2 c_3 = 1 c_4 = 4 c_5 = 1 Multiply by the least common denominator, 2, to eliminate fractional coefficients: c_1 = 4 c_2 = 3 c_3 = 2 c_4 = 8 c_5 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 4 + 3 + 2 Cr(OH)3 ⟶ 8 + 2
Structures
+ + Cr(OH)3 ⟶ +
Names
sodium hydroxide + hydrogen peroxide + Cr(OH)3 ⟶ water + sodium chromate
Chemical names and formulas
| sodium hydroxide | hydrogen peroxide | Cr(OH)3 | water | sodium chromate formula | | | Cr(OH)3 | | Hill formula | HNaO | H_2O_2 | H3CrO3 | H_2O | CrNa_2O_4 name | sodium hydroxide | hydrogen peroxide | | water | sodium chromate IUPAC name | sodium hydroxide | hydrogen peroxide | | water | disodium dioxido(dioxo)chromium
Substance properties
| sodium hydroxide | hydrogen peroxide | Cr(OH)3 | water | sodium chromate molar mass | 39.997 g/mol | 34.014 g/mol | 103.02 g/mol | 18.015 g/mol | 161.97 g/mol phase | solid (at STP) | liquid (at STP) | | liquid (at STP) | solid (at STP) melting point | 323 °C | -0.43 °C | | 0 °C | 780 °C boiling point | 1390 °C | 150.2 °C | | 99.9839 °C | density | 2.13 g/cm^3 | 1.44 g/cm^3 | | 1 g/cm^3 | 2.698 g/cm^3 solubility in water | soluble | miscible | | | surface tension | 0.07435 N/m | 0.0804 N/m | | 0.0728 N/m | dynamic viscosity | 0.004 Pa s (at 350 °C) | 0.001249 Pa s (at 20 °C) | | 8.9×10^-4 Pa s (at 25 °C) | odor | | | | odorless |
Units
