Which salt would result from the acid-base reaction of phosphoric acid and potassium hydroxide?

I already know I will have to write and equation and it with make water (H2O) and a salt. I think it starts like this... H3Po4 + KOH = K2HPO4 + H2O But I'm not sure what to do from here, if if what I have so far is correct.

Can someone find a easy way to calculate or to know when a equation has a normal or a acidic salt

Your equation is almost correct; however, you made a small mistake in balancing it. The balanced equation for the acid-base reaction between phosphoric acid (H3PO4) and potassium hydroxide (KOH) looks like this:

H3PO4 + 3KOH → K3PO4 + 3H2O

Now, let's break down the equation to understand the resulting salt and water formation:

H3PO4 (phosphoric acid) reacts with 3 KOH (potassium hydroxide) molecules. The '3' in front of KOH is necessary to balance the equation because each H3PO4 molecule contains three hydrogen atoms that need to react with potassium hydroxide.

The reaction produces K3PO4 (potassium phosphate), which is the salt you were looking for, and 3 H2O (water) molecules.

So, in summary, the salt formed from the acid-base reaction between phosphoric acid and potassium hydroxide is potassium phosphate (K3PO4), along with the formation of three water molecules (3H2O).