A solution containing sulfide ions is added to a solution of 0.036 M Cu2+ and 0.044 M Fe2+. At what concentration of sulfide ion will a precipitate begin to form? What is the identity of the precipitate?
(a) 1.4 x 10^-16 M, FeS
(b) 3.6 x 10^-35 M, CuS
(c) 3.6 x 10^-35 M, FeS
(d) 1.4 x 10^-16 M, C

Question

A solution containing sulfide ions is added to a solution of 0.036 M Cu2+ and 0.044 M Fe2+. At what concentration of sulfide ion will a precipitate begin to form? What is the identity of the precipitate? 
(a) 1.4 x 10^-16 M, FeS
(b) 3.6 x 10^-35 M, CuS
(c) 3.6 x 10^-35 M, FeS
(d) 1.4 x 10^-16 M, C

Accepted Answer

Welcome back everyone. A solution of 0.22 moller Nicoll two plus catalon and 0.26 Mohler cadmium two plus catalon is combined with a solution containing carbonate ions. At what carbonate ion concentration will precipitation or will precipitate formation begin, identify the first precipitate that forms we have the K. Sp of nickel carbonate equal to 1.4 times 10 to the negative seven power, and the K sp of cadmium carbonate equal to 5.2 times 10 to the negative power.

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Chapter 17, Problem 18

A solution containing sulfide ions is added to a solution of 0.036 M Cu2+ and 0.044 M Fe2+. At what concentration of sulfide ion will a precipitate begin to form? What is the identity of the precipitate? (a) 1.4 x 10^-16 M, FeS (b) 3.6 x 10^-35 M, CuS (c) 3.6 x 10^-35 M, FeS (d) 1.4 x 10^-16 M, C

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