Solubility Problems
Not what you're looking for?
Please refer to the attachment for the complete solution.
A solution contains 0.01 M Ag+, 0.04 M Hg22+ and 0.1 M Pb2+. NaCl is gradually added to precipitate the Ag+ as AgCl, the Hg22+ as Hg2Cl2, and the Pb2+ as PbCl2. Given the following Ksp values: AgCl (Ksp = 1.6 x 10-10); Hg2Cl2 (Ksp = 3.5 x 10-18); PbCl2 (Ksp = 2.4 x 10-4).
a) at what [Cl-] will precipitation of each salt begin. Start with the following UNBALANCED equations:
i) AgCl (s) --> Ag+ (aq) + Cl- (aq)
ii) Hg2Cl2 (s) --> Hg22+ (aq) + Cl- (aq)
i) PbCl2 (s) --> Pb2+ (aq) + Cl- (aq)
b) What is the concentration of Hg22+ in solution when AgCl begins to precipitate?
c) What are the concentrations of Ag+ and Hg22+ when Pb2+ begins to precipitate?
d) Discuss the suitability of fractional precipitation using NaCl for the separation of Ag+, Hg22+ and Pb2+.
Purchase this Solution
Solution Summary
This solution helps explore solubility problems with regards to chemistry.
Purchase this Solution
Free BrainMass Quizzes
Organic Chemistry Naming: Alkanes
This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.
General Chemistry - Classification of Matter
This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.
Match Elements with their Symbols
Elements are provided: choose the matching one- or two-letter symbol for each element.
Functional groups in Organic Chemistry
You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.
Thermochemistry
The quiz helps in revising basic concepts about thermochemistry.