Ksp, the product of solubility constant is given by the product of the concentrations in the equilibrium of the species on the right hand of the equillibrium reaction, each raised to a power that is its coeffiicient in the equillibrium reaction.
So you must start by writing the equilibrium reaction:
Fe(OH)3 (s) ----> Fe(3+) aq + 3 (OH-) aq
Now you can state the formula for the Ksp
=> Ksp = [Fe (3+) aq] [OH-]^3
So, the answer is the third option of the list.
You could find some concreat and draw some yards with chalk and write down the results
Inside the ground, different types of rocks and minerals are pressed together. The pressure causes the rocks to go together and form the sediments. Examples of sedimentary rocks are: sandstone, siltstone, and shale.
