Question

Solubility product of Mg(OH), is 1 x 10-11 At what pH, precipitation of Mg(OH), will begin from 0.1 M Mg2
solution :
(A) 9
(B) 5
(C)3
(D) 7​

Answer 1

Explanation:

Iesp (Mgent)) = 101 Mg(OH)2 - Mght + 2014 Kape Mg2+3 [0H)2 - 10 - o. l sort] 2 ) Joh]²= 10 to Evil Pott] = -1/10-10 = 105 e a Tu su polt= log fot] = -log (105)-5 PH + polt=14 . pH = 14-pot = 14-529 [PH=9 = Aus- option (1) (x -x)