When Solid Iron(II) Hydroxide Is Added to Water, the Resulting

Multiple Choice

When solid iron(II) hydroxide is added to water, the resulting solution contains 1.4* 10^-3g of dissolved iron(II) hydroxide per liter of solution. What is the hydroxide ion concentration in this solution

A) 7.8*10^-6 M
B) 1.6*10^-5 M
C) 2.5*10^-10 M
D) 3.1*10^-5 M
E) 4.0*10^-3 M