One dissolves 100 g of (CH3CH2COO)2Ca in half a litre of distilled water. What is the pH of its aqueous solution?
I know that the molar mass is 186 g, so there are 100 / 186 moles = 0.53 moles in half a litre of water = 1.06 moles / litre
But I'm lost here. I know that pH is [H+], and I know that Ka = [Products] / [Reagents], but I don't know how to proceed.
The options are "acidic", "neuter" and "basic". Any hints?