Complete and balance the following equation for H^3PO^4(aq)+NaOH(aq).  Provide an ionic equation and a net ionic equation.

Asked on by smith1767

1 Answer | Add Yours

ncchemist's profile pic

ncchemist | eNotes Employee

Posted on

H3PO4 + NaOH.  We are asked to provide the ionic equation and net ionic equation.  The ionic equation is listing all of the ions in solution in balanced form and the net ionic equation eliminates all of the unused spectator ions.  Both of the reagents completely ionize in water.  Since H3PO4 provides 3 protons per molecule of acid, 3 molecules of NaOH are required to fully neutralize each molecule of acid.  The balanced equation is written below.

H3PO4 + 3NaOH --> 3H2O + Na3PO4

The ionic equation is written below.

3H+ + (PO4)3- + 3Na+ + 3OH- --> 3H2O + 3Na+ + (PO4)3-

The phosphate and sodium ions are spectator ions.  The net ionic equation is written below.

3H+ + 3OH- --> 3H2O


We’ve answered 319,865 questions. We can answer yours, too.

Ask a question