Concentrated solutions of iron (III) chloride, sodium hydroxide, and potassium nitrate are mixed together. The precipitate which forms is ________.

Question

Quizplus · Accepted Answer

When iron (III) chloride and sodium hydroxide are mixed, they form iron (III) hydroxide as a precipitate. The reaction can be represented as FeCl3 + 3NaOH → Fe(OH)3 + 3NaCl. Potassium nitrate does not react with either of the other two solutions, so it remains in solution as ions. Therefore, the correct answer is C.

Concentrated Solutions of Iron (III) Chloride, Sodium Hydroxide, and Potassium