Suppose Hydrogen Sulfide Is Added to a Solution That Is

question 74

Multiple Choice

Suppose hydrogen sulfide is added to a solution that is 0.10 M in Cu²⁺,Pb²⁺,and Ni²⁺ such that the concentration of H₂S is 0.10 M.When the pH of the solution is adjusted to 1.00,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
CuS
6) 0 × 10^-36
PbS
2) 5 × 10^-27
NiS
3) 0 × 10^-19

• A)CuS only
• B)PbS and NiS
• C)CuS and PbS
• D)NiS only
• E)CuS,PbS,and NiS

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Definitions:

Weber

Refers to Max Weber, a German sociologist, philosopher, and political economist whose ideas profoundly influenced social theory and social research.

Social Influence

The process by which individuals change their thoughts, feelings, or behaviors as a result of interacting with others or being exposed to others' influence.

Conspicuous Waste

The disposal of valuable goods to demonstrate wealth.

Conspicuous Consumption

The purchase of expensive goods simply because they are valuable, not because there is any innate satisfaction in them.