### Input interpretation

* NaH2PO4 + H2O → NaOH + H3PO4*

** Sodium water sodium hydroxide phosphoric acid**

** dihydrogen**

** phosphate**

** phosphate**

### Balanced equation

Balance the chemical equation algebraically:

* NaH2PO4 + H2O → NaOH + H3PO4*

Add stoichiometric coefficients, c, to the reactants and products:

* c1NaH2PO4 + c2 H2O → c3 NaOH + c4 H3PO4*

Set the number of atoms in the reactants equal to the number of atoms in the products for **H, Na, O **and **P:**

**H: 2c+2C2=C3+3C4 Na: C1=C3**

O: 4C1+C2 C3 +4 C4

**P: c1=C4**

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 c1 = 1 and solve the system of equations for the remaining coefficients:

C1 = 1 C2=1

C3 = 1 C4=1

Substitute the coefficients into the chemical reaction to obtain the balanced

equation:

Answer:

NaH2PO4 + H2O → NaOH + H3PO4

Structures

Park

Na

Pa

Ho-H→ Na

O--H

Word equation

sodium dihydrogen phosphate + water →→→ sodium hydroxide + phosphoric acid