Another metal phosphate is aluminum phosphate. It will behave similar to calcium phosphate in an acid solution. What is the net ionic equation including phases for AlPO4(s) dissolving in H3O+(aq)?

Given:

Aluminum Phosphate (AlPO4 (s))

When dissolved in water, it becomes:

Balanced Chemical Equation:

AlPO4 (s) + 3H2O (l) ===> H3PO4 (aq) + Al (OH) 3 (aq)

AlPO4 + 3 H + ===> Al 3+ (aq) + PO4 3- (aq)

Answer Link

Giangiglia Giangiglia · Answer 2 · 2019-10-18T22:14:10+02:00

Answer:

[tex] AlPO_4(s) + H_3O^+(aq) \longrightarrow H_2O(l) + HPO_4^{-2}(aq) +Al^{+3}(aq)[/tex]

Explanation:

Hi, the aluminum phosphate will dissociate when mixed in water:

[tex]AlPO_4 (s) \longrightarrow Al^{+3} (aq) + PO_4^{-3}(aq)[/tex]

or if you prefer:

[tex]AlPO_4 (s) + 3 H_2O (l) \longrightarrow Al(OH)_3(aq) + H_3PO_4(aq)[/tex]

Given that the solution is acid, the phosphate ([tex]PO_4^{-3}[/tex]) will react with the [tex]H_3O^+[/tex] because of the phosphate's basic power:

[tex] PO_4^{-3}(aq) + H_3O^+(aq) \longrightarrow H_2O(l) + HPO_4^{-2}(aq)[/tex]

The net ionic equation:

[tex] AlPO_4(s) + H_3O^+(aq) \longrightarrow H_2O(l) + HPO_4^{-2}(aq) +Al^{+3}(aq)[/tex]