Write the ksp expression for the sparingly soluble compound barium phosphate, ba3(po4)2.

The  Ksp  expression   for  Ba3(PO4)2  is   written as  follows

first:   write  the  equation  for  dissociation  of Ba3(PO4)2

that  is  Ba3(PO4)2(s)  >  3Ba ^2+(aq)      +  2  Po4  ^3-(aq)

solubility  product  (KSP)  is  therefore= (Ba^2+)^3(Po4^3-) ^2

it  is  the  concentration  of  each   ion  raised  to  the  power  of  their  coefficient  in  the  formula

The nucleus inside an atom consists of positively-charged  protons  and neutrally-charged  neutrons. a  proton  is a subatomic particle with a positive electric charge. allprotons  are identical.

It shows that the experiment is designed properly.