If Chromium(III) Chloride Is Added to Be 1 × 10^-12

Multiple Choice

If chromium(III) chloride is added to be 1 × 10^-12 M in a solution that is 0.10 M NH₃, what is Qsp and will Cr(OH) ₃ precipitate? The Ksp of Cr(OH) ₃ is 6.3 × 10^-31 and Kb for NH₃ is 1.8 × 10^-5.

A) 1.0 × 10^-16, yes
B) 2.4 × 10^-23, no
C) 2.2 × 10^-19, no
D) 2.2 × 10^-19, yes
E) 2.4 × 10^-21, yes