The reactions used to confirm the presence of transition metal ions often involve the

Chapter 18, Problem 49

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The reactions used to confirm the presence of transition metal ions often involve the formation of precipitates. Review the analytical tests for the transition metals in the Elements Handbook Use that information and Table 3 to determine the minimum concentration of Zn2needed to produce a precipitate that confirms the presence of Zn. Assume enough sulfide ion reagent is added to the unknown solution in the test tube to produce a sulfide ion concentration of 1.4 x 10 0M.

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