Calculate the molarity of each ion present in each of the following solutions. 0.0020 Ca(OH)2 0.103 M Na3PO4

Question

Calculate the molarity of each ion present in each of the following solutions.

0.0020 Ca(OH)2

0.103 M Na3PO4

Answer 1

Calcium hydroxide and Sodium phosphate dissociate in solution-producing ions.

Ca(OH)₂ ------------- Ca²⁺ + 2OH^-

Calcium ions concentration is the same as its molarity 0.002

Hydroxide ions molarity is 0.002* 2= 0.004

Na₃PO₄ -------------------- 3 Na⁺ + PO₄^3-

Molarity of Na⁺ ions is 3* 0.103 = .309 M

and the PO₄^3- is 0.103