the first step in the production of magnesium from seawater is to precipitate it as Mg(OH)2. If a sea sample is kept at a pH of 11.3, would it be sufficient to precipitate most of the Mg2+ ions from the sea if the concentration of Mg2+ ions is 0.058M? Solvent multiplier = 1.8x10-11

a) Yes because only 1.5 10-7 M Mg+2 would remain in solution

b) Yes because only 4.5 10-6 M Mg+2 would remain in solution

c) Nothing would precipitate out and 0.059 M Mg+2 would remain in solution

d) No because 9 10-2 M Mg+2 would remain in solution

e) No, because 1.5 10-3 M Mg+2 would remain in solution