Sparingly soluble salts maintains their solubilityproduct value in their saturated solutions irrespective of the sources of the ions .What is the solubilityof MgCl_2 (gm// L)in a 0.01 M KOHsolution without causing precipitation of Mg(OH)_2 ?K_(sp) "of "Mg (OH)_2 = 2xx 10^(8)

Sparingly soluble salts maintains their solubilityproduct value in the

1.	Sparingly soluble salts maintains their solubilityproduct value in their saturated solutions irrespective of the sources of the ions .What is the solubilityof MgCl_2 (gm// L)in a 0.01 M KOHsolution without causing precipitation of Mg(OH)_2 ?K_(sp) "of "Mg (OH)_2 = 2xx 10^(8)
Answer» `1.9 xx 10^(-2) ` ` 2.8 xx 10^(-3) ` ` 3.4 xx 10^(-1) ` ` 4.6 xx 10^(-4) ` SOLUTION :` [KOH ]= 0.01 M , [OH^(-) ] =0.01 M ` ` K_(sp) =[Mg^(+2) ] [OH^(-) ]^(2) , 2 xx10 ^(-8)=[Mg^(+2) ](10 ^(-2) )^(2) ` ` [Mg^(+2) ] =2 xx 10 ^(-4)" mol"//"lt" ` ` [MGCL _2] =2 xx 10 ^(-4) M= 2 xx 10 ^(-4)xx 95 GM //LIT ` ` ""= 1.9 xx 10 ^(-2)gm//lit `