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H3PO4 + Mg(OH)2 = H2O + Mg3(PO4)2

Input interpretation

phosphoric acid + magnesium hydroxide ⟶ water + Trimagnesium diphosphate pentahydrate
phosphoric acid + magnesium hydroxide ⟶ water + Trimagnesium diphosphate pentahydrate

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 H, O, P and Mg: H: | 3 c_1 + 2 c_2 = 2 c_3 O: | 4 c_1 + 2 c_2 = c_3 + 8 c_4 P: | c_1 = 2 c_4 Mg: | c_2 = 3 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_4 = 1 and solve the system of equations for the remaining coefficients: c_1 = 2 c_2 = 3 c_3 = 6 c_4 = 1 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: |   | 2 + 3 ⟶ 6 +
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 H, O, P and Mg: H: | 3 c_1 + 2 c_2 = 2 c_3 O: | 4 c_1 + 2 c_2 = c_3 + 8 c_4 P: | c_1 = 2 c_4 Mg: | c_2 = 3 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_4 = 1 and solve the system of equations for the remaining coefficients: c_1 = 2 c_2 = 3 c_3 = 6 c_4 = 1 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 2 + 3 ⟶ 6 +

Structures

 + ⟶ +
+ ⟶ +

Names

phosphoric acid + magnesium hydroxide ⟶ water + Trimagnesium diphosphate pentahydrate
phosphoric acid + magnesium hydroxide ⟶ water + Trimagnesium diphosphate pentahydrate

Chemical names and formulas

 | phosphoric acid | magnesium hydroxide | water | Trimagnesium diphosphate pentahydrate Hill formula | H_3O_4P | H_2MgO_2 | H_2O | Mg_3O_8P_2 name | phosphoric acid | magnesium hydroxide | water | Trimagnesium diphosphate pentahydrate IUPAC name | phosphoric acid | magnesium dihydroxide | water | trimagnesium diphosphate
| phosphoric acid | magnesium hydroxide | water | Trimagnesium diphosphate pentahydrate Hill formula | H_3O_4P | H_2MgO_2 | H_2O | Mg_3O_8P_2 name | phosphoric acid | magnesium hydroxide | water | Trimagnesium diphosphate pentahydrate IUPAC name | phosphoric acid | magnesium dihydroxide | water | trimagnesium diphosphate

Substance properties

 | phosphoric acid | magnesium hydroxide | water | Trimagnesium diphosphate pentahydrate molar mass | 97.994 g/mol | 58.319 g/mol | 18.015 g/mol | 262.85 g/mol phase | liquid (at STP) | solid (at STP) | liquid (at STP) | solid (at STP) melting point | 42.4 °C | 350 °C | 0 °C | 1357 °C boiling point | 158 °C | | 99.9839 °C |  density | 1.685 g/cm^3 | 2.3446 g/cm^3 | 1 g/cm^3 |  solubility in water | very soluble | insoluble | | insoluble surface tension | | | 0.0728 N/m |  dynamic viscosity | | | 8.9×10^-4 Pa s (at 25 °C) |  odor | odorless | | odorless |
| phosphoric acid | magnesium hydroxide | water | Trimagnesium diphosphate pentahydrate molar mass | 97.994 g/mol | 58.319 g/mol | 18.015 g/mol | 262.85 g/mol phase | liquid (at STP) | solid (at STP) | liquid (at STP) | solid (at STP) melting point | 42.4 °C | 350 °C | 0 °C | 1357 °C boiling point | 158 °C | | 99.9839 °C | density | 1.685 g/cm^3 | 2.3446 g/cm^3 | 1 g/cm^3 | solubility in water | very soluble | insoluble | | insoluble surface tension | | | 0.0728 N/m | dynamic viscosity | | | 8.9×10^-4 Pa s (at 25 °C) | odor | odorless | | odorless |

Units