You will often work with salts of Fe 3+ , Pb 2+ , and Al 3+ in

Question:

You will often work with salts of Fe³⁺, Pb²⁺, and Al³⁺ in the laboratory. (All are found in nature, and all are important economically.) If you have a solution containing these three ions, each at a concentration of 0.10 M, what is the order in which their hydroxides precipitate as aqueous NaOH is slowly added to the solution?

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