What is the maximum possible concentration of Ni2+ ion in water at 25oC that is saturated with 0.10 M H2S and maintained at pH 3.0 with HCl?
Answer to relevant QuestionsA mixture contains 1.0 × 10-3 M Cu2+ and 1.0 × 10-3 M Mn2+ and is saturated with 0.10 M H2S. Determine a pH where CuS precipitates but MnS does not precipitate. Ksp for CuS = 8.5 × 10-45 and Ksp for MnS = 2.3 × 10-13. The following are representations of acid– base reactions: a. Label each of the species in both equations as an acid or a base and explain. b. For those species that are acids, which labels apply: Arrhenius acid and/ or ...Write the reaction and the corresponding Kb equilibrium expression for each of the following substances (acting as bases in water). a. NH3 b. CN2 c. Pyridine, C5H5N d. Aniline, C6H5NH2 At 40oC the value of Kw is 2.92 × 10-14. a. Calculate the [H+] and [OH-] in pure water at 40oC. b. What is the pH of pure water at 40oC? Calculate [OH-], pOH, and pH for each of the following. a. 0.00040 M Ca(OH)2
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