#9

15.00 mL 0.120 mol/L Zn(NO₃)₂ and 10.00 mL 0.100 mol/L Na₂CrO₄ are poured together. The solubility product of ZnCrO₄ is 2.5x10^-9. Will a precipitation be formed or not? If so, which one?

a	Which ions are present in the mixture?
b	Which precipitation can be formed?
c	Under which condition this precipitation will be formed?
d	Calculate [Zn2+] in the mixture.
e	Calculate [CrO42-] in the mixture.
f	Will the precipitation be formed?