What is the molarity of calcium phosphate that gives a solution that is 0.789M calcium ions?

Answer 1

Ca3(PO4)2-->3Ca++ +2 PO4 ---1 moleof
see that for you Ca3(PO4)2 you have 3 moles Ca++
Ca++/Ca3(PO4)2 =1/3

and 0.789/3 =0.263

Answer 0.263 M Ca3(PO4)2

Answer 2

The formula for calcium phosphate is Ca3(PO4)2 so to get 0.789 M [Ca2+] you would need a solution that is one third that molarity because the molarity of the solution would be multiplied by three because you have three calcium in the formula for calcium phosphate. 0.263 M would be the molarity of the calcium phosphate solution.

Hope this helps! Sorry if I made any mistakes