Solubility Homework Set

A uponadditionofnh3whichcomplexionswillform b

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: adjusted to pH = 2.00. Which of the metal sulfides will precipitate? Ksp of NiS is 3 x 10–20, Ksp of CuS is 6 x 10–37. 73. Solutions were prepared using 0.03 M metal ion, 0.10 M H2S and a pH of 5.25. Which metal sulfides will precipitate? K1 H2S = 9.5 x 10‐8 NiS = 3 x 10‐21 PbS = 7 x 10‐29 Ksp: MnS = 3 x 10‐14 74. Which of the following metal sulfides would form a precipitate from a solution of pH = 3.75 containing 0.10 M H2S (K1 = 9.5 x 10‐8) and 0.01 M metal ion? Ksp for MnS = 3 x 10‐14, FeS = 6 x 10‐19, CoS = 5 x 10‐22 2+, Co2+, Pb2+, Ni2+, Cu2+, Sn2+, Fe2+, Sb3+, Al3+, Cr3+, and Bi3+ ions is treated with 75. A solution containing Zn HNO3 and H2S. What is the identity of the precipitate(s) that form and which ions remain in solution? 76. Aqua regia is a commonly used reagent in experiment #25. What is the identity of aqua regia and what purpose does each component serve? 77. For the sulfide equilibrium of the type: MS(s) + H2O(l)↔M2+(aq) + HS‐(aq) +OH‐(aq) Ksp CdS 8.0 x 10‐28 CoS 5.0 x 10‐22 CuS 6.0...
View Full Document

This homework help was uploaded on 03/28/2014 for the course CHEM 123 taught by Professor Larosa during the Spring '06 term at Ohio State.

Ask a homework question - tutors are online