Most photographic films, both colored and black and white, contain silver compounds. Some of the silver is left in the film as part of the image, but much of it dissolves as Ag⁺(aq) ions in solution during the developing of the film. The silver is valuable and is generally recovered. One method of recovering the Ag⁺(aq) is to add enough NaCl to precipitate all of the Ag⁺(aq) ions as AgCl. What mass of silver chloride is produced when excess NaCl is added to 4.00 L of a solution that is 0.0438 M in Ag⁺(aq)?

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Developing a photograph.