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    Method for Trapping a Gas

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    The decomposition of 3-sulfolene to form 1,3-butadiene generates 1 mole of sulfur dioxide gas per mole of 1,3-butadiene. Substantial quantities of SO2 would be generated if this decomposition were carried out on a large scale. Suggest a method for trapping the gas to prevent its escape into the environment.

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    Solution Preview

    This question is a major industrial problem because SO2 is easily dissolved in water, yielding sulfurous acid:

    SO2(g) + H20(l) ----> H2SO3(aq)

    The acid will of course lower the pH of the water (with substantial biological impact) and also attack all substances vulnerable to acids in standard acid base reactions ...

    Solution Summary

    This solution is provided in 223 words. It discusses the issue of SO2 dissolved in water, and discusses wet scrubbers as a method of trapping the gas.