Answer : The number of moles of potassium hydroxide (KOH) are needed to completely neutralize are 4.68 moles.
Explanation :
The balanced chemical reaction will be:
[tex]3KOH+H_3PO_4\rightarrow K_3PO_4+3H_2O[/tex]
From the balanced chemical reaction we conclude that,
As, 1 mole of [tex]H_3PO_4[/tex] neutralizes 3 moles of KOH
So, 1.56 mole of [tex]H_3PO_4[/tex] neutralizes [tex]1.56\times 3=4.68[/tex] moles of KOH
Thus, the number of moles of potassium hydroxide (KOH) are needed to completely neutralize are 4.68 moles.
