Input interpretation
potassium hydroxide + iodine + arsine ⟶ water + potassium iodide + K3AsO4
Balanced equation
Balance the chemical equation algebraically: + + ⟶ + + K3AsO4 Add stoichiometric coefficients, c_i, to the reactants and products: c_1 + c_2 + c_3 ⟶ c_4 + c_5 + c_6 K3AsO4 Set the number of atoms in the reactants equal to the number of atoms in the products for H, K, O, I and As: H: | c_1 + 3 c_3 = 2 c_4 K: | c_1 = c_5 + 3 c_6 O: | c_1 = c_4 + 4 c_6 I: | 2 c_2 = c_5 As: | c_3 = c_6 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 = 11 c_2 = 4 c_3 = 1 c_4 = 7 c_5 = 8 c_6 = 1 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 11 + 4 + ⟶ 7 + 8 + K3AsO4
Structures
+ + ⟶ + + K3AsO4
Names
potassium hydroxide + iodine + arsine ⟶ water + potassium iodide + K3AsO4
Chemical names and formulas
| potassium hydroxide | iodine | arsine | water | potassium iodide | K3AsO4 formula | | | | | | K3AsO4 Hill formula | HKO | I_2 | AsH_3 | H_2O | IK | AsK3O4 name | potassium hydroxide | iodine | arsine | water | potassium iodide | IUPAC name | potassium hydroxide | molecular iodine | arsane | water | potassium iodide |
Substance properties
| potassium hydroxide | iodine | arsine | water | potassium iodide | K3AsO4 molar mass | 56.105 g/mol | 253.80894 g/mol | 77.946 g/mol | 18.015 g/mol | 166.0028 g/mol | 256.212 g/mol phase | solid (at STP) | solid (at STP) | gas (at STP) | liquid (at STP) | solid (at STP) | melting point | 406 °C | 113 °C | -111.2 °C | 0 °C | 681 °C | boiling point | 1327 °C | 184 °C | -62.5 °C | 99.9839 °C | 1330 °C | density | 2.044 g/cm^3 | 4.94 g/cm^3 | 0.003186 g/cm^3 (at 25 °C) | 1 g/cm^3 | 3.123 g/cm^3 | solubility in water | soluble | | | | | surface tension | | | | 0.0728 N/m | | dynamic viscosity | 0.001 Pa s (at 550 °C) | 0.00227 Pa s (at 116 °C) | 1.47×10^-5 Pa s (at 0 °C) | 8.9×10^-4 Pa s (at 25 °C) | 0.0010227 Pa s (at 732.9 °C) | odor | | | | odorless | |
Units
