Final answer:
Fe(OH)3 resulting from the reaction of FeCl2 and NaOH does not typically form micelles; instead, Fe(OH)3 is an insoluble precipitate, and the question may contain a conceptual misunderstanding.
Step-by-step explanation:
The formula of the micelle of Fe(OH)3 is not typically used or referred to in high school or introductory college chemistry. Micelles are usually associated with surfactant molecules that aggregate to form spherical structures in solution. The question appears to ask for the formula of the precipitate that forms when FeCl2 reacts with NaOH. In presence of excess NaOH, the correct balanced equation should actually be FeCl2 + 3 NaOH → Fe(OH)3 + 3 NaCl, resulting in the formation of iron(III) hydroxide (Fe(OH)3) and sodium chloride (NaCl). Iron(III) hydroxide will form as a precipitate (a solid substance) from this reaction, not as a micelle. The confusion may arise because iron hydroxide gels can sometimes behave similarly to micelles under certain conditions due to their colloidal nature, but this is a more complex subject typically beyond the scope of high school chemistry.