Suppose hydrogen sulfide is added to a solution that is 0.0010 M in Fe²⁺,Cd²⁺,Co²⁺,and Mn²⁺ such that the concentration of H₂S is 0.10 M.When the pH of the solution is adjusted to 3,a precipitate forms.What is the composition of the precipitate?
H₂S(aq) + 2H₂O(l)
2H₃O⁺(aq) + S^2-(aq) ; K_c = 1.1 × 10^-20
Salt
K_sp
FeS
6) 0 × 10^-18
CdS
8) 0 × 10^-27
CoS
4) 0 × 10^-21
MnS
2) 5 × 10^-10

Question

Suppose hydrogen sulfide is added to a solution that is 0.0010 M in Fe²⁺,Cd²⁺,Co²⁺,and Mn²⁺ such that the concentration of H₂S is 0.10 M.When the pH of the solution is adjusted to 3,a precipitate forms.What is the composition of the precipitate?
H₂S(aq) + 2H₂O(l)

Suppose hydrogen sulfide is added to a solution that is 0.0010 M in Fe<sup>2+</sup>,Cd<sup>2+</sup>,Co<sup>2+</sup>,and Mn<sup>2+</sup> such that the concentration of H<sub>2</sub>S is 0.10 M.When the pH of the solution is adjusted to 3,a precipitate forms.What is the composition of the precipitate? H<sub>2</sub>S(aq) + 2H<sub>2</sub>O(l) 2H<sub>3</sub>O<sup>+</sup>(aq) + S<sup>2-</sup>(aq) ; K<sub>c</sub> = 1.1 × 10<sup>-20</sup> Salt K<sub>sp</sub> FeS 6) 0 × 10<sup>-18</sup> CdS 8) 0 × 10<sup>-27</sup> CoS 4) 0 × 10<sup>-21</sup> MnS 2) 5 × 10<sup>-10</sup> A) CdS only B) CdS,CoS,FeS,and MnS C) CdS,CoS,and FeS D) CdS and FeS E) CdS and CoS

2H₃O⁺(aq) + S^2-(aq) ; K_c = 1.1 × 10^-20
Salt
K_sp
FeS
6) 0 × 10^-18
CdS
8) 0 × 10^-27
CoS
4) 0 × 10^-21
MnS
2) 5 × 10^-10

Quizplus · Accepted Answer

The Answer of Suppose hydrogen sulfide is added to a solution that is 0.0010 M in Fe²⁺,Cd²⁺,Co²⁺,and Mn²⁺ such that the concentration of H₂S is 0.10 M.When the pH of the solution is adjusted to 3,a precipitate forms.What is the composition of the precipitate? H₂S(aq)+ 2H₂O(l) 2H₃O⁺(aq)+ S^2-(aq); K_c = 1.1 × 10^-20 Salt K_sp FeS 6)0 × 10^-18 CdS 8)0 × 10^-27 CoS 4)0 × 10^-21 MnS 2)5 × 10^-10 A)CdS only B)CdS,CoS,FeS,and MnS C)CdS,CoS,and FeS D)CdS and FeS E)CdS and CoS

Suppose Hydrogen Sulfide Is Added to a Solution That Is