Cadmium (Cd) is reported to be much more toxic as the free metal (Cd^2+) than when complexed with ligands. The total soluble Cd concentration (Cgamma, Cd = [Cd^2+] 4- the sum of all soluble Cd complexes) in a water is measured to be 10^-4M. In order to ensure that the toxicity of Cd is small, it is desirable to have Cd^2+ be less than 10^-7 M. An environmental engineer suggests adding 0.5 M NaCl to complex the Cd^2+. Ignore activity corrections and the formation of any solids. Consider only the complexes of chloride with cadmium-there are 4 (log beta1 = 2.0, log beta2 = 2.6, log beta3 = 2.4, and log beta4 = 1.7).
A. Will this help keep [Cd^2+] below 10^-7 M?
B. What is [Cd^2+]?

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .