Question

what is the mole of a solution that has 6 mole of Ca-Cl 2 in 3 kg of water?

Answer 1

I think you are asking what is the molarity of a solution of six moles of calcium chloride mixed in 3 kg of water.

Well, it is dilute, so 3kg=3liters

Molarity=molessolute/litersSolution
= 6/2 = 2 M.