A solution is prepared by adding 0.10 mol of iron(III) nitrate, Fe(NO₃)₃, to 1.00 L of water. Which statement about the solution is correct? A)The solution is basic. B)The solution is neutral. C)The solution is acidic. D)The value of K _a for the species in solution must be known before a prediction can be made. E)The value of K _b for the species in solution must be known before a prediction can be made.

Question

Quizplus · Accepted Answer

Iron(III) nitrate, Fe(NO₃)₃, contains Fe3+ ions which can act as an acid in water by donating H+ ions. This will cause the solution to be acidic. Therefore, choice C is correct. Choices A and B are incorrect because Fe3+ ions will not increase the pH of the solution. Choices D and E are also incorrect as the value of K\a or K\b is not needed to predict the acidity of the solution.

A Solution Is Prepared by Adding 0