Question

Question #e0bf1

Answer 1

We have `15xx0.2=3.0mmol` reacting with `10xx0.15=1.5mmol`

Explanation:

So the mol ratio is `3.0div1.5=2`

Since phosphoric acid does not easily give off its third proton, and if the hydroxide were sodium hydroxide, the most likely equation would be:

`2NaOH+H_3PO_4->Na_2HPO_4+2H_2O`

Or: `2OH^(-)(aq) +H_3PO_4(aq)->HPO_4^(2-)(aq) +2H_2O(l)`

With (di)sodium (mono)hydrogen phosphate as the resulting salt.