The K_sp Value for Barium Chromate Is 2

Multiple Choice

The K_sp value for barium chromate is 2.1 × 10^-10. A 4.16 g sample of BaCl₂ and a 5.83 g sample of potassium chromate were added to a 1.000 liter volumetric flask, and distilled water was added to the mark. After placing the stopper and shaking the flask to dissolve as much chemicals as would dissolve, what would be the barium ion concentration remaining in solution afterwards? Be mindful that a precipitate may be formed.Hint: Solving this problem requires comparing Q vs K_sp.

A) 2.5 × 10^-8 M
B) 2.1 × 10^-8 M
C) 2.5 × 10^-7 M
D) 1.5 × 10^-6 M
E) 1.5 × 10^-5 M